ICCAS OpenIR
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
2003-05-01
Source PublicationACTA CHIMICA SINICA
ISSN0567-7351
Volume61Issue:5Pages:774-779
AbstractWith 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.
KeywordOligothiophene Liquid Crystal Intermolecular Hydrogen Bonding
Indexed BySCI
Language英语
WOS IDWOS:000184075700023
PublisherSCIENCE CHINA PRESS
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Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/81330
Collection中国科学院化学研究所
Corresponding AuthorLiu, P
Affiliation1.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
Recommended Citation
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.
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