Synthesis and liquid crystal properties of a novel class of oligothiophene derivatives

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	Synthesis and liquid crystal properties of a novel class of oligothiophene derivatives
	Liu, P ; Zhou, XP ; Hu, JH ; Zhao, QZ ; Deng, WJ ; Tong, Z ; Xu, YH ; Wan, MX
刊名	ACTA CHIMICA SINICA
	2003-05-01
卷号	61 期号:5 页码:774-779
关键词	Oligothiophene Liquid Crystal Intermolecular Hydrogen Bonding
ISSN号	0567-7351
英文摘要	With the aim of developing new oligothiophene-based liquid crystals involving hydrogen bonding, new terthiophene derivative's containing an alkylamide group, N,N'-dialkyl-5,5"-dibromo-2,2': 5', 2"-terthiophene-4,4"-dicarboxamide (DNC(n)DBr3T, n = 5, 8, 16, 18), were designed and synthesized, and their thermal behaviors were examined. While DNC(n)DBr3T compounds with n 16, 18 were found to form smectic A phase, DNC(5)DBr3T did not form liquid crystal phase. In addition to liquid crystal behavior, crystal polymorphism was also observed for DNC(16)DBr3T. It is shown that the alkyl chain length greatly affects liquid crystal phase formation. The absence of liquid crystallinity in the corresponding ester derivatives suggests that intermolecular hydrogen bonding plays a role in the formation of liquid crystal phase in the DNC(n)DBr3T system.
语种	英语
出版者	SCIENCE CHINA PRESS
WOS记录号	WOS:000184075700023
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/81329]
专题	中国科学院化学研究所
通讯作者	Liu, P
作者单位	1.S China Univ Technol, Math Sci Res Inst, Guangzhou 510640, Peoples R China 2.S China Univ Technol, Dept Appl Phys, Guangzhou 510640, Peoples R China 3.Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Liu, P,Zhou, XP,Hu, JH,et al. Synthesis and liquid crystal properties of a novel class of oligothiophene derivatives[J]. ACTA CHIMICA SINICA,2003,61(5):774-779.
APA	Liu, P.,Zhou, XP.,Hu, JH.,Zhao, QZ.,Deng, WJ.,...&Wan, MX.(2003).Synthesis and liquid crystal properties of a novel class of oligothiophene derivatives.ACTA CHIMICA SINICA,61(5),774-779.
MLA	Liu, P,et al."Synthesis and liquid crystal properties of a novel class of oligothiophene derivatives".ACTA CHIMICA SINICA 61.5(2003):774-779.