Optical, spectral and thermal characterization of nematogens in hydrogen bond liquid crystals

A homologous series comprises of eight mesogenic hydrogen bonded liquid crystal (HBLC) referred as nBAO + 4BU BA are designed, synthesized and characterized. All eight mesogens in nBAO + 4BU BA series are subjected to spectral, thermal and optical characterization. Formation of hydrogen bond in the...

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Bibliographic Details
Published in:Molecular Crystals and Liquid Crystals 2023-05, Vol.756 (1), p.11-26
Main Authors: Sheeba, Sabari Saradha, Murugadass, K., N, Pongali Sathya Prabu, MadhuMohan, M. L. N.
Format: Article
Language:English
Subjects:
Crystals
DSC
Enthalpy
FTIR
Hydrogen
hydrogen bond liquid crystals
Hydrogen bonds
Liquid crystals
nematogens
Optical properties
Phase transitions
POM
Thermodynamic properties
Transition temperatures
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Summary:A homologous series comprises of eight mesogenic hydrogen bonded liquid crystal (HBLC) referred as nBAO + 4BU BA are designed, synthesized and characterized. All eight mesogens in nBAO + 4BU BA series are subjected to spectral, thermal and optical characterization. Formation of hydrogen bond in the resultant compounds is evinced by FTIR study. All eight mesogens obtained in this series exhibits only nematic phase in their entire thermal spans which are coined as Nematogens. Essential characteristic studies carried out on these nematogens are Parachromatism as a function of temperature, phase transition temperatures,mesogenic thermal span and enthalpy involved during phase transition respectively.
ISSN:1542-1406
1563-5287
1527-1943
DOI:10.1080/15421406.2022.2117926