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Article Dans Une Revue Liquid Crystals Année : 2021

Synthesis and characterization of new pyridine-based chiral calamitic liquid crystals

Résumé

In this paper, novel chiral calamitic compounds, consisting ofn-dodecyloxyphenyl substituted pyridine carboxylate core linked to one or two benzene rings through ester linkers have been synthesised by multi-step procedures. The other end has been varied by introducing a flexible (S)-2-methylbutyloxy or (S)-3,7-dimethyloctyloxy chiral chain. The liquid crystal properties of new compounds were investigated by various experimental techniques such as DSC, POM and SAXS. The pyridine-based calamitic compounds exhibited enantiotropic chiral smectic mesophases such as SmC*, SmA or uncharacteristic mesophase depending on hetero aromatic rings such as nicotinate or picolinate cores, number of aromatic rings and the type of chiral-branched chain.

Domaines

Chimie organique
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Dates et versions

hal-02996418 , version 1 (13-10-2021)

Identifiants

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Deniz Vardar, Hale Ocak, Huriye Akdas Kilic, Olivier Jeannin, Franck Camerel, et al.. Synthesis and characterization of new pyridine-based chiral calamitic liquid crystals. Liquid Crystals, 2021, 48 (6), pp.850-861. ⟨10.1080/02678292.2020.1825841⟩. ⟨hal-02996418⟩
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