Cookies

We use cookies to ensure that we give you the best experience on our website. By continuing to browse this repository, you give consent for essential cookies to be used. You can read more about our Privacy and Cookie Policy.


Durham Research Online
You are in:

Emergent chirality in achiral liquid crystals : insights from molecular simulation models of the behaviour of bent-core mesogens.

Lintuvuori, Juho S. and Yu, Gary and Walker, Martin and Wilson, Mark R. (2018) 'Emergent chirality in achiral liquid crystals : insights from molecular simulation models of the behaviour of bent-core mesogens.', Liquid crystals., 45 (13-15). pp. 1996-2009.

Abstract

We report insights into the behaviour of achiral bent-core liquid crystals using (a) atomistic models of the PnOPIMB series of mesogens and (b) simple coarse-grained models that demonstrate the spontaneous transfer of chirality between molecules by preferential selection of chiral conformations. The models explain the unusual phenomena that chiral interactions can lead to an increase in chirality (decrease in pitch) of a bulk cholesteric liquid crystal when doped with an achiral material. We demonstrate also that chiral interactions are sufficiently strong to induce nanophase separation of an achiral mesogen within a liquid crystal phase, into nanodomains of opposite handedness by preferential selection of conformations that are instantaneously chiral (i.e. nanophase separation of and conformations of a molecule that is strictly achiral). We suggest that this unusual behaviour contributes to the templating of chiral structures in bulk phases and, hence, to many of the extraordinary properties of bent-core mesogens that include the formations of helical nanofilaments and the chiral dark conglomerate phase.

Item Type:Article
Full text:(AM) Accepted Manuscript
Available under License - Creative Commons Attribution.
Download PDF
(2656Kb)
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
Download PDF (Advance online version)
(2585Kb)
Full text:(VoR) Version of Record
Available under License - Creative Commons Attribution.
Download PDF
(2670Kb)
Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1080/02678292.2018.1492037
Publisher statement:© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Date accepted:19 June 2018
Date deposited:20 June 2018
Date of first online publication:05 July 2018
Date first made open access:No date available

Save or Share this output

Export:
Export
Look up in GoogleScholar