NEW SWITCHABLE COLUMNAR LIQUID-CRYSTALS

被引：40

作者：

SCHEROWSKY, G

CHEN, XH

机构：

[1] Institut für Organische Chemie, TC2, Technische Universitat Berlin, Berlin, 10623

来源：

LIQUID CRYSTALS | 1994年 / 17卷 / 06期

关键词：

D O I：

10.1080/02678299408035473

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Penta- and hexa-substituted phenanthrenes and penta-substituted benzo[c]-phenanthrenes have been synthesized; these exhibit columnar phases and are electrically switchable when bearing chiral side chains. The liquid crystalline and electro-optical properties are described. A strong tri-state switching behaviour is observed with the phenanthrene derivatives. A helical phase structure, responsible for this switching behaviour, is proposed and the possible mechanism of the columnar phase switching process is discussed.

引用

页码：803 / 810

页数：8