Synthesis, single crystal structure and liquid crystalline properties of bent-shaped 2,5-diaryl 1,3,4-oxadiazoles

被引：26

作者：

Zhu, Li-Rong ^{[1
,2
]}

Yao, Fei ^{[1
]}

Han, Jie ^{[1
]}

Pang, Mei-Li ^{[1
]}

Meng, Ji-Ben ^{[1
]}

机构：

[1] Nankai Univ, Dept Chem, Tianjin 300071, Peoples R China

[2] Nankai Univ, Minist Educ, Key Lab Funct Polymer Mat, Tianjin 300071, Peoples R China

来源：

LIQUID CRYSTALS | 2009年 / 36卷 / 02期

基金：

中国国家自然科学基金;

关键词：

heterocyclic liquid crystals; stilbene; single X-ray crystallography; synthesis; NONLINEAR-OPTICAL PROPERTIES; MESOGENS; DERIVATIVES; BEHAVIOR; SUBSTITUENTS; MESOPHASES; LINKAGES; ETHYNYL; PHASES; FIELD;

D O I：

10.1080/02678290902759244

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two bent-shaped 1,3,4-oxadiazole-based compounds, namely 2-[4-(2-(4-methylphenyl)-(E)-1-ethenyl)]phenyl-5-(4-pentyloxyphenyl)-1,3,4-oxadiazole 5a and 2-[4-(2-(4-fluorophenyl)-(E)- ethenyl-5-(4-pentyloxyphenyl)-1,3,4-oxadiazole 5b, were synthesised and their liquid crystalline properties were studied in this paper. Compound 5a exhibited an enantiotropic nematic mesophase, while 5b displayed an enantiotropic smectic A phase. No banana-shaped mesophases were found in these mesogens, although they adopt a bent-shaped molecular structure as confirmed by the single X-ray diffraction crystallography.

引用

页码：209 / 213

页数：5

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