SOME 3-RING ESTERS CONTAINING A PYRAZINE RING - A COMPARISON OF THEIRLIQUID-CRYSTAL PROPERTIES

Citation
Jw. Brown et al., SOME 3-RING ESTERS CONTAINING A PYRAZINE RING - A COMPARISON OF THEIRLIQUID-CRYSTAL PROPERTIES, Liquid crystals, 17(5), 1994, pp. 689-697
Citations number
6
Categorie Soggetti
Crystallography
Journal title
ISSN journal
02678292
Volume
17
Issue
5
Year of publication
1994
Pages
689 - 697
Database
ISI
SICI code
0267-8292(1994)17:5<689:S3ECAP>2.0.ZU;2-Z
Abstract
Two novel series of pyrazine-containing esters, together with an analo gous phenyl system have been prepared, and their liquid crystalline ph ase behaviour compared in order to establish how the replacement of a phenyl ring by a pyrazine ring affects the liquid crystal behaviour of these esters. Both of the heterocyclic-containing ester series show s ignificant suppression of the smectic phases, and some suppression of the nematic phase, when compared with the non-heterocyclic series.