Studies of temperature dependent Raman spectroscopy of two nematic liquid crystalline compounds of homologous series

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388963%3A_____%2F23%3A00572749" target="_blank" >RIV/61388963:_____/23:00572749 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1016/j.saa.2023.122898" target="_blank" >https://doi.org/10.1016/j.saa.2023.122898</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.saa.2023.122898" target="_blank" >10.1016/j.saa.2023.122898</a>

Result language

angličtina

Original language name

Studies of temperature dependent Raman spectroscopy of two nematic liquid crystalline compounds of homologous series

Original language description

Raman spectroscopy is an important tool to understand the structural and molecular behaviour of the liquid crystals when they undergo through different temperatures. It also helps to understand the different phase changes of the liquid crystal material as temperature changes. In this work, the structural properties of two nematic liquid crystals having relatively high clearing temperature namely 4 butylcyclohexyl-3, 5-difluoro-4- isothiocyanato biphenyl and 4-pentylcyclohexyl-3, 5-difluoro-4-isothiocyanato biphenyl are studied. The study is done using temperature dependent Raman spectroscopy. From the studies of the two compounds it has been found that the experimental values are agree well with the various functional groups and different bond assignments recorded in literature. This agreement validates the presence of different functional groups and different stretching bonds in the two studied liquid crystal compounds. Deformations of some of the peak positions of the two liquid crystal compounds have been observed with the change in phase at different temperature. Also to understand the behaviour of the Raman peak near the clearing temperatures of the liquid crystal compounds the linewidth of the different peak values at different temperature have also been studied. From the line width study, the various phase transition temperatures of the two liquid crystalline compounds can be confirmed.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10403 - Physical chemistry

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy

ISSN

1386-1425

e-ISSN

1873-3557

Volume of the periodical

300

Issue of the periodical within the volume

November

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

122898

UT code for WoS article

001061675900001

EID of the result in the Scopus database

2-s2.0-85160574553