It:Hexahelicene

Hexahelicene is an aromatics compound that is part of a homologous series of Helicenes. Helicenes are ortho-condensed polyarommatic cyclic compounds. Helicenes are notable in organic chemistry for having optical enantomers without chiral centres and asymmetric carbons. Their chirality comes from the fact that they can turn either clockwise or anticlockwise.

Hexahelicene
Hexahelicene
General
Systematic name	[6]helicene
Other names	Hexahelicene
Molecular formula	C26H16
SMILES	C12=CC=CC=C1C3=C(C=CC(C=C6)=C3C4=C6C=CC5=C4C=CC=C5)C=C2
Molar mass	328.13
Appearance	Solid crystalls
CAS number	[187-83-7]
Properties
Density and phase	1.2715 g/cm³, Crystalls
Melting point	229-231°C (? K)
Chiral rotation [α]D	1.9°
Structure
Crystal structure	rhombic
Supplementary data page
Structure and properties	n, εr, etc.
Thermodynamic data	Phase behaviour Solid, liquid, gas
Spectral data	UV, IR, NMR, MS
Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox disclaimer and references

Synthesis

Above is a possible synthetic route for Hexahelicene