Liquid crystals of the twenty-first century–nematic phase of bent-core molecules

A Jákli - Liquid Crystals Reviews, 2013 - Taylor & Francis
Bent-core (BC) materials that form nematic liquid crystals (BC nematics (BCNs)) are known
only since 2000, but since then they have been intensively studied. In this review we give a …

Polar bent-shape liquid crystals–from molecular bend to layer splay and chirality

A Eremin, A Jakli - Soft Matter, 2013 - pubs.rsc.org
Considerable progress has been achieved in understanding the fascinating structure and
physical properties of the ferroelectric liquid crystalline phases formed by bent-core liquid …

Direct observation of liquid crystals using cryo‐TEM: Specimen preparation and low‐dose imaging

M Gao, YK Kim, C Zhang, V Borshch… - Microscopy research …, 2014 - Wiley Online Library
Liquid crystals (LCs) represent a challenging group of materials for direct transmission
electron microscopy (TEM) studies due to the complications in specimen preparation and …

Raman scattering studies of order parameters in liquid crystalline dimers exhibiting the nematic and twist-bend nematic phases

Z Zhang, VP Panov, M Nagaraj, RJ Mandle… - Journal of Materials …, 2015 - pubs.rsc.org
Polarized Raman Spectroscopy (PRS) is used to quantify the orientational order in the
conventional (N) and twist-bend (NTB) nematic phases of a homologous series of liquid …

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 …

Ferroelectric-like switching in the nematic phase of four-ring bent-core liquid crystals

S Ghosh, N Begum, S Turlapati, SK Roy… - Journal of Materials …, 2014 - pubs.rsc.org
The recent discovery of a ferroelectric response to a switching electric field in nematic
phases exhibited by bent-core polar molecules, particularly 1, 2, 4-oxdiazole derivatives …

Direct observation of smectic layers in thermotropic liquid crystals

C Zhang, M Gao, N Diorio, W Weissflog… - Physical Review Letters, 2012 - APS
We demonstrate subnanometer resolution cryo-TEM imaging of smectic layers in the smectic
and nematic phases of two bent-core liquid crystals. Our results show perfect periodicity over …

Polar order, mirror symmetry breaking, and photoswitching of chirality and polarity in functional bent‐core mesogens

M Alaasar, M Prehm, S Belau… - … A European Journal, 2019 - Wiley Online Library
In recent years, liquid crystals (LCs) responding to light or electrical fields have gained
significant importance as multifunctional materials. Herein, two new series of …

Development of polar order by liquid‐crystal self‐assembly of weakly bent molecules

M Alaasar, M Prehm, S Poppe… - Chemistry–A European …, 2017 - Wiley Online Library
Organic ferroelectrics are of growing importance for multifunctional materials. Here we
provide an understanding of the distinct stages of the development of sterically induced …

The chemistry of bent-core molecules forming nematic liquid crystals

S Kumar, AN Gowda - Liquid Crystals Reviews, 2015 - Taylor & Francis
Analogous to rod-shaped and disc-shaped molecules, bent-core molecules also exhibit
nematic phases, in addition to other higher order mesophases. Presently, about 600 bent …