Paramagnetic liquid crystals with close π–π packing: The effect of Blatter radical planarization on behavior of bent-core mesogens

0570816 - FZÚ 2024 RIV DE eng J - Journal Article
Cigl, Martin - Pociecha, D. - Jakubowski, R. - Kapuściński, S. - Kaszyński, P.
Paramagnetic liquid crystals with close π–π packing: The effect of Blatter radical planarization on behavior of bent-core mesogens.
Chemistry - A European Journal. Roč. 29, č. 15 (2023), č. článku e202203288. ISSN 0947-6539. E-ISSN 1521-3765
Institutional support: RVO:68378271
Keywords : stable radicals * synthesis * paramagnetic liquid crystals * general intermediate
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 4.3, year: 2022
Method of publishing: Limited access
https://doi.org/10.1002/chem.202203288

A new, 19 π–delocalized electrons planar Blatter radical building block was developed and used to obtain paramagnetic bentcore liquid crystals. The mesogens were investigated by optical, thermal, powder XRD and DFT methods in the pure form and as binary mixtures. Comparison of their properties with those of the classical Blatter radical analogues revealed that planarization of the central angular element results in a significantly higher stability of the mesophases and increased molecular organization suitable for the formation of organized banana and columnar mesophases with tighter π–π interactions. These results indicate access to a new, potentially rich class of functional paramagnetic soft materials.

Permanent Link: https://hdl.handle.net/11104/0342152