Intrinsic chiral domains enantioselectively segregated from twisted nematic cells of bent-core mesogens.

Full Abstract

Enantioselective segregation has been attained in the Bx phase of a novel substituted oxadiazole achiral banana-shaped liquid crystal (LC) without introducing any chiral species. This bent-core molecule exhibits LC polymorphism; the higher temperature nematic (N) phase and the lower temperature banana smectic phase (Bx phase), in which spontaneous chiral segregation with (+) and (-) chiral domains occurs with equal probabilities. In twisted cell geometries, extrinsically induced twisted N structures are formed and result in intrinsically chiral conglomerate when the temperature is decreased from N to Bx. The observed optical activity in homochiral Bx phase is comparable to those theoretically predicted and is proportional to the cell thickness.(c) 2007 Wiley-Liss, Inc.

Learn Faster Today Improve your study skills

Author information

Author/s: Choi, Suk-Won (SW); Kang, Sungmin (S); Takanishi, Yoichi (Y); Ishikawa, Ken (K); Watanabe, Junji (J); Takezoe, Hideo (H);

Affiliation: Department of Organic and Polymeric Materials, Tokyo Institute of Technology, O-okayama, Tokyo, Japan.

Journal and publication information

Publication Type: Journal Article

Journal: Chirality (Chirality), published in United States. (Language: eng)

Reference: 2007-May; vol 19 (issue 4) : pp 250-4

Dates: Created 2007/04/02; Completed 2007/06/12; Revised 2007/07/05;

PMID: 17299732, 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.

Comments and Corrections

ErratumIn: Chirality. 2007 Jun;19(6):519.

External Links for this article (including full text providers, if available):

Click Electronic Full-text Provider Links to see options for finding the electronic full text links to this article. Note there may be a subscription or fee required for access to the full text. See our FAQ for information on finding FREE full text articles.

This article may also be located in paper journal collections available in many libraries. Use the Journal and Publication Information above to find the full article.

MeSH headings (categories)

This article was linked to the MESH Headings shown below.

No MeSH Headings found.

The article may not be MeSH Indexed as yet.

These are the highest related articles currently in the database:

See 100+ related articles.