Research article summary (published 14 Nov 2007):

Role of molecular shape on bent-core liquid-crystal structures.

Full Abstract

We show how frustrations in molecular packing generated by molecular substitutions and electrostatic potentials necessitate a local C1 symmetry and lead to spontaneous polarization splay and layer bending in bent-core liquid crystals. By estimation of the entropic changes due to curvature, we calculated the elastic constants that drive the spontaneous layer bend and polarization splay and obtained length scales of these deformations. Finally, we propose a structural phase diagram which describes how the experimentally observed helical superstructures, layer undulation, polarization splay, and spontaneous fiber formation depend on the direction and magnitude of the spontaneous polarization.

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Author information

Author/s: Bailey, C (C); Jákli, A (A);

Affiliation: Chemical Physics Interdisciplinary Program and Liquid Crystal Institute, Kent State University, Kent, Ohio 44242, USA.

Journal and publication information

Publication Type: Journal Article

Journal: Physical review letters (Phys Rev Lett), published in United States. (Language: eng)

Reference: 2007-Nov; vol 99 (issue 20) : pp 207801

Dates: Created 2008/01/31; Completed 2008/05/01;

PMID: 18233187, status: PubMed-not-MEDLINE (last retrieval date: 11/6/2008)

Sourced from the National Library of Medicine. Abstract text and other information may be subject to copyright.

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