Structural characterization of the new polymorphic mesophases formed by bent-core molecules

被引：44
作者：
Eremin, A
Wirth, I
Diele, S
Pelzl, G
Schmalfuss, H
Kresse, H
Nádasi, H
Fodor-Csorba, K
Gács-Baitz, E
Weissflog, W
机构：
[1] Univ Halle Wittenberg, Inst Phys Chem, D-06108 Halle An Der Saale, Germany
[2] Hungarian Acad Sci, Res Inst Solid State Phys & Opt, Budapest, Hungary
[3] Hungarian Acad Sci, Chem Res Ctr, Inst Chem, H-1525 Budapest, Hungary
来源：
LIQUID CRYSTALS | 2002年 / 29卷 / 06期
关键词：
D O I：
10.1080/02678290210136328
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new achiral banana-shaped five-ring 2-methylresorcinol derivative fluorinated on the outer rings has been synthesized. This compound exhibits four antiferroelectric smectic phases characteristic for bent-core molecules (B-2, B'(2), B"(2), B-5). In addition, a highly viscous solid-like phase has been detected which also shows electro-optical switching. This is the first switchable highly ordered B phase. The characterization of the mesophases was made by X-ray diffraction, electro-optical measurements and dielectric spectroscopy.
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收藏
页码：775 / 782
页数：8
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