DOI: 10.1039/A907083D
(Paper)
CrystEngComm, 1999, 1, 21-23
Arrested handedness and disordered stacking in crystals of the pre helical molecule 7.8-dioxa[6]helicene
(Note: The full text of this document is currently only available in the PDF Version )
Frederik C. Krebs, André Faldt, Niels Thorup and Klaus Bechgaard
Abstract
7.8-Dioxa[6]helicene exhibits arrested chirality in the crystalline state. The asymmetric unit contains 8 different, stacked helical molecules of which two are disordered. The molecules appear in homochiral (3 x 1 x () strings. Further analysis indicates that there can be domains of enantiomeric excess and a dipolar structure reminiscent of 1-D Ising behaviour.