Liquid Crystalline Corannulene Responsive to Electric Field
Liquid Crystalline Corannulene Responsive to Electric Field
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DOI：
10.1021/ja808396b
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发表时间：
2009-01-14
影响因子：
15
通讯作者：
Aida, Takuzo
中科院分区：
文献类型：
--
作者：
Miyajima, Daigo;Tashiro, Kentaro;Aida, Takuzo
具有三支链石蜡侧链的酰胺附加环烯衍生物(3)在154℃至-10℃的宽温度范围内自组装成六方柱状液晶（LC）中间相。与平面多环芳烃柱状LC组装体相比，非平面3的LC组装体对施加的电场有响应，并能与电极表面呈同向排列。即使在电场关闭后，这种排列也会被记忆很长一段时间，除非材料被加热到高于清除温度。
An amide-appended corannulene derivative (3) with tribranched paraffinic side chains self-assembles into a hexagonal columnar liquid crystalline (LC) mesophase over a wide temperature range from 154 to -10 degrees C. In contrast with columnar LC assemblies of planar polycyclic aromatic hydrocarbons, the LC assembly of nonplanar 3 responds to an applied electric field and can align homeotropically to the electrode surface. Even after the electric field is switched off, this alignment is memorized for a long period of time unless the material is heated above the clearing temperature.