The effect of trifluoromethyl and difluoromethoxy groups on mesomorphic properties

Citation
K. Kimoto et al., The effect of trifluoromethyl and difluoromethoxy groups on mesomorphic properties, MOLEC CRYST, 364, 2001, pp. 733-738
Citations number
6
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Volume
364
Year of publication
2001
Pages
733 - 738
Database
ISI
SICI code
Abstract
This paper describes the effect of terminal substituent on the mesomorphic properties in 3- and 4-(4-alkoxyphenoxycarbonyl)phenyl 3- and 4-R-benzoate and 4-(4-alkoxybenzoyloxy)phenyl 2-, 3-, and 4-R-benzoates (R = CF3, OCF3, OCF2H). The meta-trifluoromethoxy and para-difluoromethoxy compounds tend t o show a smectic C phase, as well as smectic A and nematic ones, and introd uction of a chiral carbon in the alkoxyl group induces the chiral smectic C one.