LIQUID-CRYSTALLINE COMPOUNDS .56. THERMOTROPIC BIAXIAL NEMATIC PHASES WITH NEGATIVE OPTICAL CHARACTER

被引：77

作者：

PRAEFCKE, K ^{[1
]}

KOHNE, B ^{[1
]}

SINGER, D ^{[1
]}

DEMUS, D ^{[1
]}

PELZL, G ^{[1
]}

DIELE, S ^{[1
]}

机构：

[1] MARTIN LUTHER UNIV,SEKT CHEM,O-4010 HALLE,GERMANY

来源：

LIQUID CRYSTALS | 1990年 / 7卷 / 04期

关键词：

D O I：

10.1080/02678299008033835

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Two disc-shaped multialkynyl arene ethers (1 and 2) with unusual thermo-mesomorphic properties are presented. Conoscopic studies show that the nematic phases of these new low molecular weight liquid crystals are biaxial and that the sign of their biaxiality is negative. The diether 2 is the first discotic twin liquid crystal which exhibits a nematic phase. © 1990 Taylor & Francis Group, LLC.

引用

页码：589 / 594

页数：6

共 22 条

[1]

BALLAUFF M, 1988, ANGEW CHEM, V100, P775

[2] A BIAXIAL NEMATIC LIQUID-CRYSTAL [J].