Columnar Liquid-Crystalline Macrocycles Synthesized via Metal Ion-Assisted Self-Assembly,Inorganic Chemistry

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Columnar Liquid-Crystalline Macrocycles Synthesized via Metal Ion-Assisted Self-Assembly
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2018-03-19 00:00:00 , DOI: 10.1021/acs.inorgchem.8b00046
Shin-ichiro Kawano ₁ , Takafumi Murai ₁ , Takahiro Harada ₁ , Kentaro Tanaka ₁

Affiliation

Columnar assemblies of liquid-crystalline (LC) macrocycles hold promise for the construction of nanochannels in fluid materials. Metal-assisted self-assembly is an efficient way to prepare LC macrocycles. A large π-conjugated ligand, 9,10-diphenylanthracene (DPA) bearing two β-diketones, was prepared as a building unit for the macrocycle, and a series of side chains were incorporated into the DPA to yield LC materials. The bis(β-diketone) ligands on DPA allow for the efficient formation of triangular 3:3 metallomacrocycles in the presence of square-planar Cu²⁺ ions. The copper-containing 3:3 metallomacrocycle with the appropriate side chains exhibited thermotropic columnar LC phases in which the columns were arranged in rectangular arrays over a wide temperature range, and well-ordered birefringent textures were observed under a polarized microscope.

中文翻译：

通过金属离子辅助自组装合成的柱状液晶大环化合物

液晶（LC）大环的柱状组装有望在流体材料中构建纳米通道。金属辅助自组装是制备LC大环化合物的有效方法。制备带有两个β-二酮的大π共轭配体9,10-二苯基蒽（DPA）作为大环的构建单元，并将一系列侧链掺入DPA中以产生LC材料。DPA上的双（β-二酮）配体可在存在正方形平面Cu ²⁺的情况下有效形成三角形3：3金属大环离子。具有适当侧链的含铜3：3金属大环化合物显示出热致柱状LC相，其中柱在宽温度范围内以矩形阵列排列，并且在偏光显微镜下观察到井井有条的双折射织构。

更新日期：2018-03-19

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