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首页> 外文会议>Meeting of the Electrochemical Society;International Meeting on Chemical Sensors >Host-Guest Chemistry of Porphyrins in Liquid Crystalline Macrocycles
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Host-Guest Chemistry of Porphyrins in Liquid Crystalline Macrocycles

机译：液晶宏型卟啉的宿主客人化学

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Structurally well-defined macrocyclic molecules have great potential to accommodate specific guest molecules in the hollow. Recently, we have reported a series of macrocycles which are composed of four carbazoles connected with four salphen ligands, four dibenzothiophenes connected with four salen ligands, or four diindrocarbazoles connected with four salphen ligands (MC1, MC2 and MC3, respectively). The macrocycles with appropriate peripheral alkyl chains and their tetranuclear metal complexes with square planar metal ions showed thermotropic columnar liquid crystalline properties. These macrocycles stacked to form columns inside the fluid materials. Especially, the giant macrocycle MC3 contained a square hollow with a diagonal of 2.5 nm. This giant macrocycle has the largest inner cavity among known discrete shape-persistent macrocycles that exhibit thermotropic LC properties. The size and shape of the hollow structure make it interesting for molecular inclusion applications. For example, MC3 molecule can accommodate a tetrapyridylporphyrin inside the hollow to afford a planar conjugate, and the conjugate showed liquid crystalline behavior.
机译：结构明确定义的宏环分子具有很大的潜力，可容纳空心中的特定客体分子。最近，我们报告了一系列宏蜂鸣，这些宏蜂鸣由四个配糖配体连接的四个咔唑，四种盐配体与四个盐配体连接的四种二苯甲酸酯，或与四个酱油配体（MC1，MC2和MC3相连的四个Diindrocarbazoles）。具有适当的外周烷基链和具有方形平面金属离子的四核金属配合物的宏键性显示出热致柱状液晶性能。这些宏依旧堆叠以在流体材料内形成柱。特别是，巨大的宏细胞MC3包含一个方形中空，其对角线为2.5nm。该巨大宏型具有最大的内腔，其中具有显示出热辐射LC性能的已知离散形状持续的宏蜂鸣。中空结构的尺寸和形状使得分子包裹件应用有趣。例如，MC3分子可以容纳在空心内的四吡啶基，得到平面缀合物，并且缀合物显示出液晶行为。

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