Discrimination in isotropic, nematic, and smectic phases of chiral calamitic molecules: a computer simulation study.
Racemic fluids of chiral calamitic molecules are investigated with molecular dynamics simulations. In particular, the phase behavior as a function of density is examined for eight racemates. The relationship between chiral discrimination and orientational order in the phase is explored. We find that the transition from the isotropic phase to a liquid crystal phase is accompanied by an increase in chiral discrimination, as measured by differences in radial distributions. Among ordered phases, discrimination is largest for smectic phases with a significant preference for heterochiral contact within the layers.
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Department of Chemistry, Queen's University, Kingston Ontario K7L 3N6, Canada.
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