A Liquid Crystalline Phase with Uniform Tilt, Local Polar Order and Capability of Symmetry Breaking

被引：79
作者：
Alaasar, Mohamed [1 ,2 ]
Prehm, Marko [2 ]
Nagaraj, Mamatha [3 ]
Vij, Jagdish K. [3 ]
Tschierske, Carsten [2 ]
机构：
[1] Cairo Univ, Fac Sci, Dept Chem, Giza, Egypt
[2] Univ Halle Wittenberg, Inst Chem, D-06120 Halle, Germany
[3] Univ Dublin, Trinity Coll, Dept Elect & Elect Engn, Dublin 2, Ireland
来源：
ADVANCED MATERIALS | 2013年 / 25卷 / 15期
关键词：
liquid crystals; chirality; self-assembly; bent-core mesogens; symmetry breaking; SMECTIC PHASES; NEMATIC PHASE; CHIRALITY; AMPLIFICATION; DIRECTION; MESOGENS; BEHAVIOR; AZO;
D O I：
10.1002/adma.201205180
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A new liquid crystalline (LC) phase with uniform tilt, local polar order and capability of symmetry breaking is found for a bent-core mesogen combining a 4-cyanoresorcinol unit with two azobenzene wings. The combination of local polar order and long range synclinic tilt in this SmCsPR phase leads, under special conditions, to macroscopic domains with opposite chirality, though the molecules themselves are achiral. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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收藏
页码：2186 / 2191
页数：6
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