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Liquid crystalline benzothiophene derivatives. Part 2: 2,5-disubstituted benzothiophenes
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SYSNO ASEP 0368154 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Liquid crystalline benzothiophene derivatives. Part 2: 2,5-disubstituted benzothiophenes Author(s) Kozmík, V. (CZ)
Henke, A. (CZ)
Řehová, L. (CZ)
Kurfűrst, M. (CZ)
Slabochová, M. (CZ)
Svoboda, J. (CZ)
Novotná, Vladimíra (FZU-D) RID, ORCID, SAI
Glogarová, Milada (FZU-D) RID, ORCIDSource Title Liquid Crystals. - : Taylor & Francis - ISSN 0267-8292
Roč. 38, č. 10 (2011), s. 1245-1261Number of pages 17 s. Language eng - English Country GB - United Kingdom Keywords liquid crystals ; 2,5-disubstituted benzothiophene ; calamitic phases ; mesomorphic properties Subject RIV BM - Solid Matter Physics ; Magnetism R&D Projects GA202/09/0047 GA AV ČR - Academy of Sciences of the Czech Republic (AV ČR) GAP204/11/0723 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z10100520 - FZU-D (2005-2011) UT WOS 000295835900004 DOI 10.1080/02678292.2011.605177 Annotation In the continuation of our study on heterocyclic mesogens, the structural motif of a 2,5-disubstituted benzothiophene as the central unit was utilised to design novel liquid crystals. Despite the bent molecular structure, the formation of a standard calamitic phase was observed. The mesomorphic properties of the model substances of series I was very close to that of the previously studied 6-substituted derivatives. Introduction of the chiral terminal unit led to appearance of the ferroelectric smectic C* (SmC*) phase. Phenylbenzothiophene based mesogens exhibited higher clearing temperatures and polymorphism (nematic-smectic A-SmC sequence). Thus, the central benzothiophene unit can be successfully utilised in the design of various liquid crystals. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2012
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