Molecular structure and chiral liquid crystalline phases

被引:34
作者
Sadashiva, BK [1 ]
机构
[1] Raman Res Inst, Bangalore 560080, Karnataka, India
来源
PRAMANA-JOURNAL OF PHYSICS | 1999年 / 53卷 / 01期
关键词
chiral; achiral; banana-shaped molecules; undulating twist grain boundary phase;
D O I
10.1007/s12043-999-0150-4
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We describe briefly some results obtained on both chiral and achiral compounds exhibiting chiral mesophases. We report the first example of a single component system exhibiting the undulated twist grain boundary C* or UTGB(C*) phase. Preliminary results concerning a few achiral compounds composed of banana-shaped molecules exhibiting a mesophase is reported. They have been investigated by polarized light optical microscopy, differential scanning calorimetry and x-ray diffraction studies.
引用
收藏
页码:213 / 222
页数:10
相关论文
共 34 条
[31]  
SHUBASHREE S, IN PRESS
[32]   REENTRANT MESOPHASES IN DISC-LIKE LIQUID-CRYSTALS [J].
TINH, NH ;
FOUCHER, P ;
DESTRADE, C ;
LEVELUT, AM ;
MALTHETE, J .
MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1984, 111 (3-4) :277-292
[33]   The direction of the carbon-valenz in benzol-progeny. [J].
Vorlander, D .
BERICHTE DER DEUTSCHEN CHEMISCHEN GESELLSCHAFT, 1929, 62 :2831-2835
[34]   TWISTED GRAIN-BOUNDARY PHASES IN 3 NEW CHIRAL AZOBENZENE SERIES [J].
WERTH, M ;
NGUYEN, HT ;
DESTRADE, C ;
ISAERT, N .
LIQUID CRYSTALS, 1994, 17 (06) :863-877