Lamellar Twinning Explains the Nearly Racemic Composition of Chiral, Single Crystals of Hexahelicene
- 13 November 1981
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 214 (4522) , 795-797
- https://doi.org/10.1126/science.214.4522.795
Abstract
Solvent etching of single crystals of hexahelicene grown from a racemic solution reveals an unusual layer-like pattern in which pure (+)- and pure (–)-layers alternate through the crystal; this arrangement results in a nearly racemic composition although the crystal is ostensibly chiral, space group P212121. Etched crystals of enantiomerically pure hexahelicene display no such pattern. The two kinds of crystal are indistinguishable by x-ray diffraction.Keywords
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