Photosensitive bent-core compounds with azo-group attached to the central ring

0536051 - FZÚ 2021 RIV CH eng J - Journal Article
Cigl, Martin - Hamplová, Věra - Pociecha, D. - Novotná, Vladimíra
Photosensitive bent-core compounds with azo-group attached to the central ring.
Crystals. Roč. 10, č. 11 (2020), s. 1-14, č. článku 1030. ISSN 2073-4352. E-ISSN 2073-4352
R&D Projects: GA ČR GA19-03564S; GA MŠMT(CZ) EF16_019/0000760; GA MŠMT LTC19051
Grant - others:OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Institutional support: RVO:68378271
Keywords : photosensitivity * liquid crystals * bent-core mesogens * azo-compound
OECD category: Nano-materials (production and properties)
Impact factor: 2.589, year: 2020
Method of publishing: Open access

We prepared and studied bent-core liquid crystalline compounds based on 1,3-disubstituted benzene in a central part and azo-linkage attached directly to this bent-core. We designed three structures and checked their mesogenic properties as well as photosensitivity. Two studied compounds revealed columnar mesophases, which we transformed to the isotropic phase under the illumination of UV light. One type of compounds was not mesogenic. For studied mesogens we have established phases and phase transition temperatures based on DSC measurements and observations in a polarizing microscope. To confirm phase identification, x-ray studies were performed and structural parameters describing the columnar phases supplied.

Permanent Link: http://hdl.handle.net/11104/0313897