Unusual polymorphism in new bent-shaped liquid crystals based on biphenyl as a central molecular core

0430319 - FZÚ 2015 RIV DE eng J - Journal Article
Kovářová, A. - Světlík, S. - Kozmik, V. - Svoboda, J. - Novotná, Vladimíra - Pociecha, D. - Gorecka, E. - Podoliak, Natalia
Unusual polymorphism in new bent-shaped liquid crystals based on biphenyl as a central molecular core.
Beilstein Journal of Organic Chemistry. Roč. 10, Apr (2014), s. 794-807. ISSN 1860-5397. E-ISSN 1860-5397
R&D Projects: GA ČR GA13-14133S; GA ČR(CZ) GAP204/11/0723
Grant - others:AVČR(CZ) M100101211
Institutional support: RVO:68378271
Keywords : bent-shaped * biphenyl core * liquid crystals * mesomorphic behaviour * SmCG phase
Subject RIV: JJ - Other Materials
Impact factor: 2.757, year: 2014

Bent-shaped mesogens possessing a biphenyl as a central core have been synthesized and the role of the terminal chain and the orientation of the ester as a linkage group have been investigated. For the studied molecular core we have established that both parameters play an important role for the mesomorphic properties. The polyfluoroalkyl terminal chain supports the formation of mesophases, and the introduction of a chiral lactate terminal chain destabilizes mesophases for the first type of mutual orientation of ester groups, attached to the central core.
Permanent Link: http://hdl.handle.net/11104/0235274