Columnarly Assembled Liquid-Crystalline Peptidic Macrocycles Unidirectionally Orientable over a Large Area by an Electric Field
Columnarly Assembled Liquid-Crystalline Peptidic Macrocycles Unidirectionally Orientable over a Large Area by an Electric Field
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DOI：
10.1021/ja203894r
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发表时间：
2011-09-07
影响因子：
15
通讯作者：
Aida, Takuzo
中科院分区：
文献类型：
--
作者：
Sato, Kohei;Itoh, Yoshimitsu;Aida, Takuzo
受天然存在的肽大环的启发，我们开发了液晶（LC）化合物1和2，其能够在包括室温的宽温度范围内自组装成六方柱状中间相。它们的碗状大环核心是构象稳健的，因为内部H-键的存在下，而柱状组件是通过分子间H-键合相互作用，涉及环外酰胺单元确保。当电场从垂直于膜平面的方向施加到它们的LC膜时，柱在大面积上垂直取向。
Being inspired by naturally occurring peptidic macrocycles, we developed liquid-crystalline (LC) compounds 1 and 2 that are capable of self-assembling into hexagonal columnar mesophases over a wide temperature range that includes room temperature. Their bowl-shaped macrocyclic cores are conformationally robust because of the presence of internal H-bonds, while the columnar assembly is ensured by intermolecular H-bonding interactions involving the exocyclic amide units. When an electric field was applied to their LC films from a direction orthogonal to the film plane, the columns were oriented homeotropically over a large area.