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Liquid Crystals and their Application
Russian Journal

Zhidkie kristally i ikh prakticheskoe ispol'zovanie

Жидкие кристаллы и их практическое использование

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Journal



Zhidk. krist. ikh prakt. ispol'z. = Liq. Cryst. and their Appl., 2017, 17 (1), 43—55.
DOI: 10.18083/LCAppl.2017.1.43





Rod-Like Mesogenes with Three Aromatic Rings and Chiral Terminal Substituent



G. V. Kuvshinov1, O. V. Potemkina2, S. A. Kuvshinova1, O. I. Koifman1,3

Author affiliations
1Research Institute of Macroheterocyclic Compounds, Ivanovo State University of Chemistry and Technology,
7 Sheremetevsky Pr., Ivanovo, 153000, Russia
2Ivanovo Fire Rescue Academy of State Firefighting Service of Ministry of Russian Federation for Civil Defense, Emergencies and Elimination of Consequences of Natural Disasters,
33 Stroiteley Pr., Ivanovo, 153040, Russia
2Institute of Solutions Chemistry, Russian Academy of Sciences,
1 Academicheskaya St., Ivanovo, 153045, Russia
E-mail: sofya.kuv@yandex.ru

Abstract
Six rod-like liquid crystalline compounds containing the three aromatic rings and (S)-2-methyl-1-buthyloxy-chiral terminal group have been synthesized. The chemical structures of the obtained compounds were characterized by elemental analysis, NMR spectroscopy and mass spectrometry. The polarizability and dipole moments of molecules as well as their structures were calculated with the help of quantum chemical methods (DFT B3LYP). Phase transition temperatures and enthalpies were determined by differential scanning calorimetry. The effects of the molecule structure on the mesomorphic properties have been studied and discussed.

Keywords: synthesis, spectroscopy, chiral terminal substituent, quantum chemical calculation, mesophase, chiral nematic phase





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