Synthesis and Mesomorphic Behavior of Novel Liquid-Crystalline Thiophene Derivatives

被引：9
|
作者：
Majumdar, K. C. [1 ]
Mondal, Shovan [1 ]
Ghosh, Tapas [1 ]
机构：
[1] Univ Kalyani, Dept Chem, Kalyani 741235, W Bengal, India
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2010年 / 524卷
关键词：
Cholesterol; ferrocene; Sonogashira coupling; thiophene-based liquid crystal; LIGHT-EMITTING-DIODES; CONJUGATED POLYMERS; CHARGE-TRANSPORT; ELECTROLUMINESCENCE; TRANSISTORS; OLIGOMERS; POLY(3-OCTYLTHIOPHENE); OLIGOTHIOPHENES; POLYTHIOPHENE; CHOLESTEROL;
D O I：
10.1080/15421400903568112
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new class of thiophene-based cholesteryl and ferrocenyl derivatives was synthesized and characterized by common analytical techniques. Liquid-crystalline properties were investigated by polarizing optical microscopy (POM) and differential scanning calorimetry (DSC). Thiophene-based cholesteryl derivatives show homeotropic liquid-crystalline phase sequence crystalsmectic Acholestericisotropic, whereas the ferrocenyl derivative is nonmesomorphic. The effects of thiophene ring, terminal group, and length of the polymethylene spacers on the mesomorphic behavior are discussed.
引用
收藏
页码：17 / 25
页数：9
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