Novel ionic liquid-crystalline compounds bearing oxadiazole and pyridinium moieties as prospective materials for optoelectronic applications

被引:60
作者
Haristoy, D [1 ]
Tsiourvas, D [1 ]
机构
[1] NCSR Demokritos, Inst Phys Chem, Athens, Greece
关键词
D O I
10.1021/cm021365g
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Novel liquid-crystal materials based on 1-alkyl-4-[5-(dodecylsulfanyl)-1,3,4-oxadiazol-2-yl]pyridinium bromide derivatives were synthesized. Their thermotropic polymorphism was investigated by polarizing optical microscopy and differential scanning calorimetry. The structures of their crystalline and smectic A phases were investigated by X-ray diffraction. The existence of thermochromic properties in the smectic phase as well as their UV-visible and fluorescence properties were also studied. The chemical structure of the compounds renders these materials suitable for optoelectronic applications.
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页码:2079 / 2083
页数:5
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