Construction of Self-assembled Hybridized Materials Having Intelligent Functions

到目前为止报道的大多数组装金属配合物都是由合适的双齿有机间隔体和三角、四面体和八面体金属模板组成的，其中金属离子作为连接部分。然而，从金属离子不能作为反应中心以及形成的纳米孔不能随分子的大小或形状变化的观点来看，这些都是不利的。这些问题将通过使用氢键和疏水作用中心等非共价相互作用中心修饰的金属络合物来解决。在此之前，我们报道了一些双核金属配合物，它们之间以三重氢键相连。本研究项目的目的是构建仅具有三重氢键和疏水相互作用的新型纳米多孔过渡金属配合物，并建立一种新的制备方法。在本项目中，我们设计并制备了一维、二维、三维配位骨架，如螺旋、砖墙、梯子、蜂窝、正方形网格、镶木地板、菱形以及更复杂的连接化合物。利用这些方法构建具有纳米多孔骨架的配位聚合物由于其潜在的功能，如尺寸选择性分子吸附、形状选择性催化和离子交换等，引起了人们的极大兴趣。在这里，我们成功地制备了一种新型的纳米多孔金属络合物，它是由含有氢键和疏水基团等非共价相互作用基团的金属络合物构建的。

Most of assembled metal complexes reported hitherto are constructed with a combination of appropriate bidentate organic spacers and trigonal, tetrahedral, and octahedral metal templates, in which the metal ions are used as joining parts. However, these are disadvantage from the viewpoint that the metal ions are not available as the reactive site and the formed nano-pores cannot change according to the molecular sizes or shapes. These problems will be settled by the use of the metal complexes modified with non-covalent interaction sites such as hydrogen bonding and hydrophobic ones. Previously, we reported some dinuclear metal complexes linked with a triple hydrogen-bond between the biguanidato and biuretato complexes. The objective of this research project is to construct novel nano-porous transition metal complexes assembled with only the triple-hydrogen bonding and hydrophobic interactions and to establish a new methodology for the preparation methods. In this project, we designed and prepared one-, two-, and three-dimensional coordination frameworks, such as helical, brick wall, ladder, honeycomb, square grid, parquet, diamondoid and more complicate connective compounds. The construction of coordination polymers with nano-porous frameworks using these methodologies are of great interest due to their potential functionalities such as size-selective molecular absorption, shape-selective catalysis, and ion-exchange. Here, we succeeded in preparation of a novel nano-porous metal complex that has been constructed from the metal complexes bearing non-covalent interaction groups such as hydrogen bonding and hydrophobic ones.