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Chiral solutes can seed the formation of enantiomorphic domains in a twist-bend nematic liquid crystal

James W. Emsley1,*, Philippe Lesot2, Geoffrey R. Luckhurst1, Abdelkrim Meddour2, and Denis Merlet2

  • 1School of Chemistry, University of Southampton, Highfield, Southampton SO17 1BJ, United Kingdom
  • 2University Paris Sud 11, ICMMO (CNRS UMR 8182), Laboratoire de RMN en Milieu Orienté, F-91405 Orsay, France

  • *Corresponding author: jwe@soton.ac.uk
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Phys. Rev. E 87, 040501(R) – Published 3 April, 2013

DOI: https://doi.org/10.1103/PhysRevE.87.040501

Abstract

The twist-bend nematic, an enantiomorphic liquid-crystalline phase, exhibited by the structurally symmetric liquid-crystal dimer CB7CB is induced to form a single domain of uniform handedness, in the bulk, by the addition of the dopant chiral solute (S)-1-phenylethanol. Addition of a nonracemic (or scalemic) mixture of both R and S enantiomers of this solute produced equal volumes of P and M chiral domains for the twist-bend nematic phase. This seeding of the domains in an enantiomorphic nematic conglomerate is revealed using deuterium NMR spectroscopy.

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Phys. Rev. E 87, 040501(R)– Published 3 April, 2013
  • Received 19 September 2012

©2013 American Physical Society

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