Diastereomeric liquid crystal domains at the mesoscale

Dong Chen, Michael R. Tuchband, Balazs Horanyi, Eva Korblova, David M. Walba, Matthew A. Glaser, Joseph E. Maclennan and Noel A. Clark ()
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Dong Chen: University of Colorado
Michael R. Tuchband: University of Colorado
Balazs Horanyi: University of Colorado
Eva Korblova: University of Colorado
David M. Walba: University of Colorado
Matthew A. Glaser: University of Colorado
Joseph E. Maclennan: University of Colorado
Noel A. Clark: University of Colorado

Nature Communications, 2015, vol. 6, issue 1, 1-10

Abstract: Abstract In many technologies used to achieve separation of enantiomers, chiral selectors are designed to display differential affinity for the two enantiomers of a chiral compound. Such complexes are diastereomeric, differing in structure and free energy for the two enantiomers and enabling chiral discrimination. Here we present evidence for strong diastereomeric interaction effects at the mesoscale, manifested in chiral liquid crystal guest materials confined in a chiral, nanoporous network of semi-crystalline helical nanofilaments. The nanoporous host is itself an assembly of achiral, bent-core liquid crystal molecules that phase-separate into a conglomerate of 100 micron-scale, helical nanofilament domains that differ in structure only in the handedness of their homogeneous chirality. With the inclusion of a homochiral guest liquid crystal, these enantiomeric domains become diastereomeric, exhibiting unexpected and markedly different mesoscale structures and orientation transitions producing optical effects in which chirality has a dominant role.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:nat:natcom:v:6:y:2015:i:1:d:10.1038_ncomms8763

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DOI: 10.1038/ncomms8763

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