The Synthesis and Liquid Crystal Properties of Certain 5,5″-Disubstituted 2,2′:5′,2″-Terthiophenes
作者:
David Byron,
Avtar Matharu,
Robert Wilson,
Gavin Wright,
期刊:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals
(Taylor Available online 1995)
卷期:
Volume 265,
issue 1
页码: 61-76
ISSN:1058-725X
年代: 1995
DOI:10.1080/10587259508041679
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The synthesis and liquid crystal properties of eight members of an homologous series of 5-n-alkanoyl-5″ -n-alkyl-2,2′:5′,2″-terthienyls and the corresponding eight 5,5″ -di-n-alkyl-2,2′:5′,2″-terthienyls are reported. The disposition of thè three thiophene rings is sufficiently linear that suitably substituted compounds are mesomorphic, and the liquid crystal transition temperatures of related members of the two series are compared. Corresponding 5,5′-disubstituted 2,2′-bithienyls are not liquid crystalline.
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