MESOMORPHIC PROPERTIES OF BROMO AND CYANO SUBSTITUTED DIARYLETHANES

被引：15

作者：

TINH, NH

ZANN, A

DUBOIS, JC

机构：

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 1979年 / 53卷 / 1-2期

关键词：

D O I：

10.1080/00268947908083981

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two homologous series of diarylethanes: 1-(4-alkoxy or alkyl-benzoyloxyphenyl)-2-(4 prime -bromo or cyanophenyl) ethanes (series I) and 1-(4-alkoxy 3-bromo or cyanobenzoyloxyphenyl)-2-(4 prime -pentylphenyl) ethanes (series II) have been synthesized. The influence of the bromo or cyano group, in the meta or para position, on the mesomorphic range and the clearing point, is studied. In the series I, the bromo group induces a smectic polymorphism, whereas the cyano group induces nematic mesophases. In the series II, the larger the meta substituant, the lower the clearing point.

引用

页码：29 / &

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