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	<id>https://chemwiki.ch.ic.ac.uk/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Mjr116</id>
	<title>ChemWiki - User contributions [en]</title>
	<link rel="self" type="application/atom+xml" href="https://chemwiki.ch.ic.ac.uk/api.php?action=feedcontributions&amp;feedformat=atom&amp;user=Mjr116"/>
	<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/wiki/Special:Contributions/Mjr116"/>
	<updated>2026-05-04T06:13:58Z</updated>
	<subtitle>User contributions</subtitle>
	<generator>MediaWiki 1.43.0</generator>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602605</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602605"/>
		<updated>2017-03-15T13:17:05Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1162sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;br /&gt;
&lt;br /&gt;
[[File:mjr1162sigmaustar.png]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_u* orbital. Two electrons contribute to this molecular orbital, one from each of the 2s atomic orbitals of the fluorine atoms. This is an occupied molecular orbital and it is a result of the out of phase combination of orbitals, therefore this is an antibonding molecular orbital. This reduces the stability of the bond between the F atoms as the electron density is over the atoms but there is a node (gap) between the two atoms of lower electron density.&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1163sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 3σ_g F2 molecular orbital. It is the result of the in-phase combination of the 2p orbitals on the fluorine atoms, therefore this is an occupied bonding MO. The electron density is in between the two nuclei therefore this MO contributes to the stability of the bonding.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1161piu.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 1π_u F2 molecular orbital. It is the result of in-phase combination of the 2p orbitals, and is therefore an occupied bonding MO which contributes to the stability of the molecule.&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1161pigstar.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 1π_g* F2 molecular orbital. It is an anti-bonding orbital resulting from the out of phase combination of the 2p atomic orbitals. This is the HOMO (Highest Occupied Molecular Orbital) of the F¬2 molecule.&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1163sigmaustar.png]]&lt;br /&gt;
This is the 3σ_u* F2 molecular orbital. It is an anti-bonding MO resulting from the out of phase combination of the 2p atomic orbitals of the fluorine atoms. It is the LUMO (Lowest Unoccupied Molecular Orbital) of the F2 molecule.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1163sigmaustar.png&amp;diff=602604</id>
		<title>File:Mjr1163sigmaustar.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1163sigmaustar.png&amp;diff=602604"/>
		<updated>2017-03-15T13:15:29Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: 3 sigma u star f2 orbital&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;3 sigma u star f2 orbital&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1161pigstar.png&amp;diff=602601</id>
		<title>File:Mjr1161pigstar.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1161pigstar.png&amp;diff=602601"/>
		<updated>2017-03-15T13:12:22Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: 1 pi g star f2 orbital&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;1 pi g star f2 orbital&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602593</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602593"/>
		<updated>2017-03-15T13:08:12Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1162sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;br /&gt;
&lt;br /&gt;
[[File:mjr1162sigmaustar.png]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_u* orbital. Two electrons contribute to this molecular orbital, one from each of the 2s atomic orbitals of the fluorine atoms. This is an occupied molecular orbital and it is a result of the out of phase combination of orbitals, therefore this is an antibonding molecular orbital. This reduces the stability of the bond between the F atoms as the electron density is over the atoms but there is a node (gap) between the two atoms of lower electron density.&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1163sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 3σ_g F2 molecular orbital. It is the result of the in-phase combination of the 2p orbitals on the fluorine atoms, therefore this is an occupied bonding MO. The electron density is in between the two nuclei therefore this MO contributes to the stability of the bonding.&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1161piu.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 1π_u F2 molecular orbital. It is the result of in-phase combination of the 2p orbitals, and is therefore an occupied bonding MO which contributes to the stability of the molecule.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1161piu.png&amp;diff=602592</id>
		<title>File:Mjr1161piu.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1161piu.png&amp;diff=602592"/>
		<updated>2017-03-15T13:07:54Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: 1 pi u f2 orbital&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;1 pi u f2 orbital&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602589</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602589"/>
		<updated>2017-03-15T13:03:33Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1162sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;br /&gt;
&lt;br /&gt;
[[File:mjr1162sigmaustar.png]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_u* orbital. Two electrons contribute to this molecular orbital, one from each of the 2s atomic orbitals of the fluorine atoms. This is an occupied molecular orbital and it is a result of the out of phase combination of orbitals, therefore this is an antibonding molecular orbital. This reduces the stability of the bond between the F atoms as the electron density is over the atoms but there is a node (gap) between the two atoms of lower electron density.&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1163sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 3σ_g F2 molecular orbital. It is the result of the in-phase combination of the 2p orbitals on the fluorine atoms, therefore this is a bonding MO. The electron density is in between the two nuclei therefore this MO contributes to the stability of the bonding.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1163sigmag.png&amp;diff=602588</id>
		<title>File:Mjr1163sigmag.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1163sigmag.png&amp;diff=602588"/>
		<updated>2017-03-15T13:03:04Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: 3 sigma g orbital of f2&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;3 sigma g orbital of f2&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602587</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602587"/>
		<updated>2017-03-15T13:02:34Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1162sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;br /&gt;
&lt;br /&gt;
[[File:mjr1162sigmaustar.png]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_u* orbital. Two electrons contribute to this molecular orbital, one from each of the 2s atomic orbitals of the fluorine atoms. This is an occupied molecular orbital and it is a result of the out of phase combination of orbitals, therefore this is an antibonding molecular orbital. This reduces the stability of the bond between the F atoms as the electron density is over the atoms but there is a node (gap) between the two atoms of lower electron density.&lt;br /&gt;
&lt;br /&gt;
[[File:mjr1163sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 3σ_g F2 molecular orbital. It is the result of the in-phase combination of the 2p orbitals on the fluorine atoms, therefore this is a bonding MO. The electron density is in between the two nuclei therefore this MO contributes to the stability of the bonding.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602585</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602585"/>
		<updated>2017-03-15T12:58:33Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1162sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;br /&gt;
&lt;br /&gt;
[[File:mjr1162sigmaustar.png]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_u* orbital. Two electrons contribute to this molecular orbital, one from each of the 2s atomic orbitals of the fluorine atoms. This is an occupied molecular orbital and it is a result of the out of phase combination of orbitals, therefore this is an antibonding molecular orbital. This reduces the stability of the bond between the F atoms as the electron density is over the atoms but there is a node (gap) between the two atoms of lower electron density.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1162sigmaustar.png&amp;diff=602584</id>
		<title>File:Mjr1162sigmaustar.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1162sigmaustar.png&amp;diff=602584"/>
		<updated>2017-03-15T12:58:17Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: 2 sigma u star orbital of f2&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;2 sigma u star orbital of f2&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602582</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602582"/>
		<updated>2017-03-15T12:53:23Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr1162sigmag.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1162sigmag.png&amp;diff=602581</id>
		<title>File:Mjr1162sigmag.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr1162sigmag.png&amp;diff=602581"/>
		<updated>2017-03-15T12:53:06Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: 2 sigma g orbital of f2&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;2 sigma g orbital of f2&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602580</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602580"/>
		<updated>2017-03-15T12:51:15Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:F2 3 orbital.png]]&lt;br /&gt;
&lt;br /&gt;
This is the 2σ_g F2 orbital. One electron from each of the 2s atomic orbitals on the Fluorine atoms combine in-phase to make the 2σ_g molecular orbital. This molecular is an occupied orbital and it is a bonding MO. The electron density is spread between the two atoms and therefore this MO will have a stabilising effect on the bonding between the two F atoms.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602579</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602579"/>
		<updated>2017-03-15T12:43:17Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:F2 3 orbital.png]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:F2_3_orbital.png&amp;diff=602578</id>
		<title>File:F2 3 orbital.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:F2_3_orbital.png&amp;diff=602578"/>
		<updated>2017-03-15T12:42:35Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602577</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602577"/>
		<updated>2017-03-15T12:40:59Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:F2 3 orbital.tif]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602576</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=602576"/>
		<updated>2017-03-15T12:39:36Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Orbitals&lt;br /&gt;
&lt;br /&gt;
[[File:F2 3 orbital.tif]]&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:F2_3_orbital.tif&amp;diff=602575</id>
		<title>File:F2 3 orbital.tif</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:F2_3_orbital.tif&amp;diff=602575"/>
		<updated>2017-03-15T12:39:09Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601932</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601932"/>
		<updated>2017-03-13T12:01:04Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequency 1063.53&lt;br /&gt;
&lt;br /&gt;
Charge: 0.0000&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601931</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601931"/>
		<updated>2017-03-13T12:00:00Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequnecy 1063.53&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601885</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601885"/>
		<updated>2017-03-13T11:53:20Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116f2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116f2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116f2.log&amp;diff=601883</id>
		<title>File:Mjr116f2.log</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116f2.log&amp;diff=601883"/>
		<updated>2017-03-13T11:53:08Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: f2&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;f2&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601876</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601876"/>
		<updated>2017-03-13T11:52:11Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* F2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: F2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -199.48874381&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.06248728&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000250     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000250     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000308     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000435     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601860</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601860"/>
		<updated>2017-03-13T11:49:39Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* Energy for the reaction */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;br /&gt;
&lt;br /&gt;
== F2 ==&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601724</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601724"/>
		<updated>2017-03-13T11:27:13Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* Energy for the reaction */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;br /&gt;
&lt;br /&gt;
N2 + 3H2 -&amp;gt; 2NH3&lt;br /&gt;
&lt;br /&gt;
E(NH3)= -56.55776873&lt;br /&gt;
&lt;br /&gt;
2*E(NH3)= -113.11553746&lt;br /&gt;
&lt;br /&gt;
E(N2)= -109.52412868&lt;br /&gt;
&lt;br /&gt;
E(H2)=  -1.09691172&lt;br /&gt;
&lt;br /&gt;
3*E(H2)= -3.29073516&lt;br /&gt;
&lt;br /&gt;
ΔE=2*E(NH3)-[E(N2)+3*E(H2)]= -113.11553746 - (-109.52412868 + -3.29073516) = -0.30067362&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
Energy for converting hydrogen and nitrogen gas into ammonia gas in kJ/mol = -789.418649445&lt;br /&gt;
&lt;br /&gt;
The ammonia product is therefore more stable.&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601694</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601694"/>
		<updated>2017-03-13T11:19:59Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* H2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== Energy for the reaction ==&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601689</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601689"/>
		<updated>2017-03-13T11:18:26Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* H2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116h2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116h2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116h2.log&amp;diff=601687</id>
		<title>File:Mjr116h2.log</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116h2.log&amp;diff=601687"/>
		<updated>2017-03-13T11:18:14Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: h2&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;h2&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601683</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601683"/>
		<updated>2017-03-13T11:17:30Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* H2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;br /&gt;
&lt;br /&gt;
Molecule: H2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
E(RB3LYP): -1.09691172&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.05487992&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000211     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000211     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000278     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000393     0.001200     YES&lt;br /&gt;
 &amp;lt;/pre&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601663</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601663"/>
		<updated>2017-03-13T11:13:51Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* N2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
==H2==&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601634</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601634"/>
		<updated>2017-03-13T11:09:30Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* N2 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601632</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601632"/>
		<updated>2017-03-13T11:09:20Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601630</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601630"/>
		<updated>2017-03-13T11:08:51Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116n2.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116n2.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116n2.log&amp;diff=601626</id>
		<title>File:Mjr116n2.log</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116n2.log&amp;diff=601626"/>
		<updated>2017-03-13T11:08:04Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: n2&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;n2&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601610</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601610"/>
		<updated>2017-03-13T11:06:22Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
== N2 ==&lt;br /&gt;
&lt;br /&gt;
Molecule: N2&lt;br /&gt;
&lt;br /&gt;
Calculation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final energy E(RB3LYP) in au: -109.52412868&lt;br /&gt;
&lt;br /&gt;
RMS gradient: 0.00000365&lt;br /&gt;
&lt;br /&gt;
Point Group: D*H&lt;br /&gt;
&lt;br /&gt;
N-N bond length: 1.10550&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000006     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000006     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000002     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000003     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
Frequencies: &lt;br /&gt;
2457.31&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601537</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601537"/>
		<updated>2017-03-13T10:51:03Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
&lt;br /&gt;
12&lt;br /&gt;
&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
&lt;br /&gt;
4&lt;br /&gt;
&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
&lt;br /&gt;
1&lt;br /&gt;
&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601531</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601531"/>
		<updated>2017-03-13T10:50:35Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
12&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
4&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
1&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
6&lt;br /&gt;
&lt;br /&gt;
N - atom charge: -1.125&lt;br /&gt;
H - atom charge: 0.375&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601529</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601529"/>
		<updated>2017-03-13T10:49:40Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601519</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601519"/>
		<updated>2017-03-13T10:46:47Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
how many modes do you expect from the 3N-6 rule?&lt;br /&gt;
12&lt;br /&gt;
which modes are degenerate (ie have the same energy)?&lt;br /&gt;
2 and 3&lt;br /&gt;
5 and 6&lt;br /&gt;
which modes are &amp;quot;bending&amp;quot; vibrations and which are &amp;quot;bond stretch&amp;quot; vibrations?&lt;br /&gt;
1 - bending&lt;br /&gt;
2 - bending&lt;br /&gt;
3 - bending&lt;br /&gt;
4 - stretch&lt;br /&gt;
5 - stretch&lt;br /&gt;
6 - stetch&lt;br /&gt;
which mode is highly symmetric?&lt;br /&gt;
4&lt;br /&gt;
one mode is known as the &amp;quot;umbrella&amp;quot; mode, which one is this?&lt;br /&gt;
1&lt;br /&gt;
how many bands would you expect to see in an experimental spectrum of gaseous ammonia?&lt;br /&gt;
6&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601483</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601483"/>
		<updated>2017-03-13T10:38:08Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;br /&gt;
&lt;br /&gt;
[[File:Mjr116nh3displayvibrations.png]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116nh3displayvibrations.png&amp;diff=601481</id>
		<title>File:Mjr116nh3displayvibrations.png</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116nh3displayvibrations.png&amp;diff=601481"/>
		<updated>2017-03-13T10:37:23Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601456</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601456"/>
		<updated>2017-03-13T10:29:41Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
&amp;lt;script&amp;gt;frame 1.16&amp;lt;/script&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601451</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601451"/>
		<updated>2017-03-13T10:27:55Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;test molecule&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601449</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601449"/>
		<updated>2017-03-13T10:26:35Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
The optimisation file is linked to [[Media:Mjr116nh3.log| here]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116nh3.log&amp;diff=601446</id>
		<title>File:Mjr116nh3.log</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116nh3.log&amp;diff=601446"/>
		<updated>2017-03-13T10:24:53Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: n&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;n&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601432</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601432"/>
		<updated>2017-03-13T10:20:49Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Media:File:Mjr116 nh3.LOG]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601429</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601429"/>
		<updated>2017-03-13T10:19:17Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Media:File:Mjr116_nh3.LOG]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601425</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601425"/>
		<updated>2017-03-13T10:17:28Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: /* NH3 */&lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
[[Media:Mjr116 nh3.ogg]]&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601417</id>
		<title>Rep:MOD:mjr116</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=Rep:MOD:mjr116&amp;diff=601417"/>
		<updated>2017-03-13T10:11:49Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;== NH3 ==&lt;br /&gt;
Molecule: NH3&lt;br /&gt;
&lt;br /&gt;
Calulation Method: RB3LYP&lt;br /&gt;
&lt;br /&gt;
Basis Set: 6-31G(d,p)&lt;br /&gt;
&lt;br /&gt;
Final Energy E(RB3LYP) in au: -56.55776873&lt;br /&gt;
&lt;br /&gt;
RMS Gradient: 0.00000485&lt;br /&gt;
&lt;br /&gt;
Point Group: C3V&lt;br /&gt;
&lt;br /&gt;
N-H Bond Distance: 1.01798&lt;br /&gt;
&lt;br /&gt;
H-N-H Bond Angle: 105.741&lt;br /&gt;
&lt;br /&gt;
&amp;lt;pre&amp;gt;&lt;br /&gt;
   Item               Value     Threshold  Converged?&lt;br /&gt;
 Maximum Force            0.000004     0.000450     YES&lt;br /&gt;
 RMS     Force            0.000004     0.000300     YES&lt;br /&gt;
 Maximum Displacement     0.000072     0.001800     YES&lt;br /&gt;
 RMS     Displacement     0.000035     0.001200     YES&lt;br /&gt;
&amp;lt;/pre&amp;gt;&lt;br /&gt;
&lt;br /&gt;
&lt;br /&gt;
&amp;lt;jmol&amp;gt;&amp;lt;jmolApplet&amp;gt;&lt;br /&gt;
  &amp;lt;title&amp;gt;nh3&amp;lt;/title&amp;gt;&lt;br /&gt;
  &amp;lt;color&amp;gt;black&amp;lt;/color&amp;gt;&lt;br /&gt;
  &amp;lt;size&amp;gt;200&amp;lt;/size&amp;gt;&lt;br /&gt;
  &amp;lt;uploadedFileContents&amp;gt;mjr116_nh3.log&amp;lt;/uploadedFileContents&amp;gt;&lt;br /&gt;
&amp;lt;/jmolApplet&amp;gt;&amp;lt;/jmol&amp;gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
	<entry>
		<id>https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116_nh3.LOG&amp;diff=601415</id>
		<title>File:Mjr116 nh3.LOG</title>
		<link rel="alternate" type="text/html" href="https://chemwiki.ch.ic.ac.uk/index.php?title=File:Mjr116_nh3.LOG&amp;diff=601415"/>
		<updated>2017-03-13T10:09:16Z</updated>

		<summary type="html">&lt;p&gt;Mjr116: &lt;/p&gt;
&lt;hr /&gt;
&lt;div&gt;&lt;/div&gt;</summary>
		<author><name>Mjr116</name></author>
	</entry>
</feed>