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The synthesis and characterization of a novel thiophene-based liquid crystal exhibiting ferro-, ferri- and antiferro-electric phase types

The synthesis and characterization of a novel thiophene-based liquid crystal exhibiting ferro-, ferri- and antiferro-electric phase types. Byron, David J.; Komitov, Lachezar; Matharu, Avtar S.; McSherry, Ian; Wilson, Robert C. (Dep. 29886-65-5 and 128209-59-6 are also occured in this study. of Chemistry and Physics, Nottingham Trent Univ., Nottingham NG11 8NS, UK). Journal of Materials Chemistry, 6(12), 1871-1878 (English) 1996 Royal Society of Chemistry. CODEN: JMACEP. ISSN: 0959-9428. DOCUMENT TYPE: Journal CA Section: 75 (Crystallography and Liquid Crystals) The synthesis and liq. crystal properties of (R)-(-)-4-(1-methylheptyloxycarbonyl)phenyl 5-(4-decyloxyphenyl)thiophene-2-carboxylate is reported. This material exhibits the following phase types (°C): I 97.4 SA 92.2 SC* 81.4 ferri 78.8 antiferroelec. 48.6 glass state (characterized by thermal optical microscopy and DSC). Results from electrooptical studies, for example, field-induced transitions, temp. and voltage dependence and current and electrooptic response, clearly illustrate the presence of the SC* ferro-, ferri- and antiferro-elec. phase types. .