10.2.3.3 Distorted Graphenes
The third and final example we wish to discuss here is a peropyrene system that is
chirally distorted by opportune substitutions (Fig. 10.10).
The chemical structure of the investigated molecule is quite interesting: oppositely oriented distortions in the two opposite ends of the molecule take place due to
Fig. 10.9 (Top): ECD and CPL spectra of hexahelicene (HEX). (Center): ECD and CPL spectra of
5-aza-hexahelicene (5N-HEX). (Bottom): ECD and CPL spectra of thia-bridged triarylamine-hetero
[6]-helicene (TRIA-HEX). See Refs. [30, 53]
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235
The third and final example we wish to discuss here is a peropyrene system that is
chirally distorted by opportune substitutions (Fig. 10.10).
The chemical structure of the investigated molecule is quite interesting: oppositely oriented distortions in the two opposite ends of the molecule take place due to
Fig. 10.9 (Top): ECD and CPL spectra of hexahelicene (HEX). (Center): ECD and CPL spectra of
5-aza-hexahelicene (5N-HEX). (Bottom): ECD and CPL spectra of thia-bridged triarylamine-hetero
[6]-helicene (TRIA-HEX). See Refs. [30, 53]
10 Structural and Electronic Information Drawn. . .
235