Details

Autor(en) / Beteiligte

• Gak Simić, Kristina
• Đorđević, Ivana
• Janjić, Goran
• Datz, Dániel
• Tóth-Katona, Tibor
• Trišović, Nemanja

Titel

On the photophysical properties of a liquid crystal dimer based on 4-nitrostilbene: A combined experimental and theoretical study

Ist Teil von

• Journal of molecular liquids, 2021-10, Vol.339, p.116969, Article 116969

Ort / Verlag

Elsevier B.V

Erscheinungsjahr

2021

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• [Display omitted] •A newly synthesized dimer is an enantiotropic LC exhibiting a conventional nematic phase.•The spectroscopic features were analysed by UV–Vis and fluorescence techniques.•The structures of three possible isomers were theoretically predicted.•The proposed mechanism of conversion involves two carbene-type saddle points. A new liquid crystal dimer, 1,12-bis(4-(2-(4-nitrophenyl)ethenyl)phenoxy)dodecane, was synthesized and structurally characterized. The compound exhibited enantiotropic nematic phase. The spectroscopic properties were analysed by UV–Vis and fluorescence techniques. Theoretical calculations were used to predict the UV–Vis spectral properties of three isomers and propose a mechanism of conversion between them. The obtained results present a solid basis for the future studies on the stilbene-based liquid crystal dimers, thus affording guidelines for development of a structure–property relationship of these compounds.