Bent-core liquid crystals with a 2-substituted 3-hydroxybenzoic acid central core |
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| Authors: | Lenka Pallová Václav Kozmík Michal Kohout Vladimíra Novotná Damian Pociecha |
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| Institution: | 1. Department of Organic Chemistry, University of Chemistry and Technology, Prague 6, Czech Republic;2. Institute of Physics, Academy of Science of the Czech Republic, Prague 8, Czech Republic;3. Laboratory of Dielectrics and Magnetics, Chemistry Department, Warsaw University, Warsaw, Poland |
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| Abstract: | We report the synthesis and study of the mesomorphic behaviour for a series of bent-core materials based on 2-substituted 3-hydroxybenzoic acid as a central unit. Properties of the studied compounds are tuned by lateral substitution (F, Cl, CH3, NO2 and CN) in the position 2 of 3-hydroxybenzoic acid and by the length of the terminal alkyl chain. All studied homologues exhibit at least one mesophase. Mesomorphic properties are established and compared with other 3-hyhroxybenzoic derivatives studied previously, with analogous orientation of ester linkages, laterally substituted at different position on the central core. The role of the substitution and the length of the terminal alkyl chain are discussed. |
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| Keywords: | Bent-core liquid crystals 3-hydroxybenzoic acid lateral substituent mesomorphic properties |
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