The role of substitution in the apex position of the bent-core on mesomorphic properties of new series of liquid crystalline materials

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22310%2F20%3A43921637" target="_blank" >RIV/60461373:22310/20:43921637 - isvavai.cz</a>

Alternative codes found

RIV/68378271:_____/20:00534551

Result on the web

<a href="https://www.mdpi.com/2073-4352/10/9/735" target="_blank" >https://www.mdpi.com/2073-4352/10/9/735</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/cryst10090735" target="_blank" >10.3390/cryst10090735</a>

Result language

angličtina

Original language name

The role of substitution in the apex position of the bent-core on mesomorphic properties of new series of liquid crystalline materials

Original language description

We present the synthesis and mesomorphic properties of the new series of bent-core liquid crystals based on 3-hydroxybenzoic acid bearing a lateral substituent in the apex position. Four different substituents of various sizes and electronic properties have been used. We have found that only compounds substituted with fluorine are mesogenic and exhibit one mesophase, whose type differs when prolonging the terminal alkyl chain. For homologues with shorter alkyl chains (octyl, decyl), a columnar B1-type of a mesophase was observed, while materials with longer terminal chains (dodecyl, tetradecyl) exhibited a switchable lamellar SmCAPA phase. Calorimetric measurements, texture observations under a polarizing microscope were performed and electro-optical properties studied. Additionally, dielectric measurements were realized to characterize the molecular dynamics in the SmCAPA phase. All mesogenic compounds were further studied by X-ray measurements to confirm phase identification and obtain more information about their structural parameters. © 2020 by the authors.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10401 - Organic chemistry

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2020

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

CRYSTALS

ISSN

2073-4352

e-ISSN

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Volume of the periodical

10

Issue of the periodical within the volume

9

Country of publishing house

CH - SWITZERLAND

Number of pages

20

Pages from-to

1-20

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-85090209351