Talk:Mod:lks11oc
Feedback
General introduction on what you intend to do in the expt?
Cyclopentadiene
Figure 2 is not drawn by you? If so, you must cite its source, and not claim it as your own.
Good results and analysis.
Taxol
You provide no coordinates for me to inspect. Are the conformations boats or chairs? If chair, which one (there are two possible). More detail on this needed! You could have studied the hyper stability by hydrogenation and then comparison with cyclohexene.
NMR
You should clearly state your geometry was a chair (but again two are possible, did you have the lowest energy one?)
You could do some statistics on the NMR results and perhaps compare the fit to eg the other chair or a boat? Your actual fit is rather poor, suggesting your conformations not ideal.
Crystal structures
"he lone pair on the oxygen atom is able to donate electron density into the other C-O antibonding orbital, resulting in the lengthening of that C-O bond. " But only if the alignment is correct. Did you check these alignments?
NMR of epoxides
"There is better agreement between the calculated and measured NMR spectra for the epoxide here than for the taxol intermediate (compound 17) previously measured.
" Again, a statistical indication of this is needed.
Optical rotations
Multiple lit values are present. Why do you quote only one? You do not declare what the absolute configuration of your calculation is, or the same for the lit value. Quote ® or (S) at all times, otherwise it is meaningless.
TS
Good analysis of the energies.
NCI and QTAIM
Nice results.
Suggested alkene
A good suggestion.
Overall, nice but more analysis of other conformations for eg the taxols.