Nematic phases in 1, 2, 4‐Oxadiazole‐based bent‐core liquid crystals: is there a ferroelectric switching?

G Shanker, M Nagaraj, A Kocot, JK Vij… - Advanced Functional …, 2012 - Wiley Online Library
Abstract Four series of new 1, 2, 4‐oxadiazole derived bent‐core liquid crystals
incorporating one or two cyclohexane rings are synthesized and investigated by optical …

Polar order in bent-core nematics: An overview

F Vita, FC Adamo, O Francescangeli - Journal of Molecular Liquids, 2018 - Elsevier
The possible existence of a ferroelectric nematic phase has been challenging liquid crystal
scientists since it was first envisaged about 30 years ago. At present, an undisputable proof …

A molecular theory of nematic–nematic phase transitions in mesogenic dimers

AG Vanakaras, DJ Photinos - Soft Matter, 2016 - pubs.rsc.org
We study theoretically the molecular origins of the fascinating, and still debated, nematic–
nematic phase transition exhibited by symmetric, statistically achiral, mesogenic dimers. A …

1, 2, 4‐oxadiazole‐based bent‐core liquid crystals with cybotactic nematic phases

G Shanker, M Prehm, M Nagaraj, JK Vij… - …, 2014 - Wiley Online Library
Several series of bent‐core mesogens derived from 3, 5‐diphenyl‐1, 2, 4‐oxadiazole with or
without lateral groups and with different length terminal chains at both ends, and polycatenar …

Probing molecular ordering in the nematic phases of para-linked bimesogen dimers through NMR studies of flexible prochiral solutes

LM Heist, ET Samulski, C Welch, Z Ahmed… - Liquid …, 2020 - Taylor & Francis
The quadrupolar splittings of perdeuteriated n-decane dissolved in nematic phases formed
by mesogenic dimers of the CBnCB series, for n= 7, 9, 10, 11, are measured throughout the …

Low nematic onset temperatures and room temperature cybotactic behavior in 1, 3, 4-oxadiazole-based bent-core mesogens possessing lateral methyl groups

F Speetjens, J Lindborg, T Tauscher… - Journal of Materials …, 2012 - pubs.rsc.org
As part of our efforts to access the biaxial nematic phase at low temperatures, we prepared a
series of 1, 3, 4-oxadiazole-based bent-core mesogens that possess either one or three …

Molecular dynamics simulations of nematic phases formed by cyano-biphenyl dimers

AG Vanakaras, DJ Photinos - Liquid Crystals, 2018 - Taylor & Francis
Molecular dynamics simulations of selected members of the cyano-biphenyl (CB) series of
dimers (CBnCB) have been set up using atomistic detail for the description of the alkyl …

Ferroelectric nematic and ferrielectric smectic mesophases in an achiral bent-core azo compound

J Kumar, V Prasad - The Journal of Physical Chemistry B, 2018 - ACS Publications
Here, we report the observation of ferroelectric nematic and ferrielectric smectic
mesophases in an achiral bent-core azo compound consisting of nonsymmetrical molecules …

Search for nematic biaxiality in bent-core mesogens: an X-ray diffraction perspective

F Vita - Liquid Crystals, 2016 - Taylor & Francis
Since its theoretical prediction in 1970, the search for the biaxial nematic phase in
thermotropic systems has challenged generations of liquid crystal scientists. Over the last 10 …

The effects of lateral halogen substituents on the low-temperature cybotactic nematic phase in oxadiazole based bent-core liquid crystals

J Nguyen, W Wonderly, T Tauscher, R Harkins… - Liquid …, 2015 - Taylor & Francis
We have previously demonstrated that the incorporation of lateral methyl groups on
oxadiazole-based liquid crystals leads to relatively low-temperature cybotactic nematic …