Highly conjugated 4-ring nematic liquid crystals with a lateral alkoxy branch
作者:
T.-H. TONG,
B.M. FUNG,
期刊:
Liquid Crystals
(Taylor Available online 1997)
卷期:
Volume 23,
issue 6
页码: 883-889
ISSN:0267-8292
年代: 1997
DOI:10.1080/026782997207812
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Three types of liquid crystalline compound containing a 4-ring mesogenic core with a lateral alkoxy chain on one of the inner rings were synthesized, and their mesogenic properties studied. The 4-ring core of these compounds bears an electron-accepting nitro group at one end and an electron-donating alkylamino moiety at or near the other end. Therefore, they are highly coloured and have lambda max 473 nm. One of these three types of compound has a wide enantiotropic nematic range. Twelve homologous analogues in this series with different lengths for the terminal alkyl chain and the lateral alkoxy chain were synthesized and compared.
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