Ionic liquid crystals: synthesis and mesomorphic properties of dimeric 2,4,6-triarylpyrylium tetrafluoroborates

Authors
Veber, M Berruyer, G
Citation
M. Veber et G. Berruyer, Ionic liquid crystals: synthesis and mesomorphic properties of dimeric 2,4,6-triarylpyrylium tetrafluoroborates, LIQ CRYST, 27(5), 2000, pp. 671-676
Citations number
13
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LIQUID CRYSTALS
ISSN journal
02678292 → ACNP
Volume
27
Issue
5
Year of publication
2000
Pages
671 - 676
Database
ISI
SICI code
0267-8292(200005)27:5<671:ILCSAM>2.0.ZU;2-V
Abstract
The synthesis of some dimeric pyrylium salts is described. The link between the two cationic parts of the molecule can be flexible or rigid. Surprisin gly, the starting dimeric chalcones with a rigid link exhibit monotropic co lumnar hexagonal phases. Results concerning the spectroscopic and mesomorph ic properties of the pyrylium salts and the chalcones are given.