基于外壁作用的瓜环基超分子配位聚合物

Supramolecular Coordination Polymers Based on the Outer-Surface Interaction of Cucurbit[n]urils

利用瓜环外壁的结构导向作用设计并构筑瓜环-金属离子超分子配位聚合物可能成为瓜环配位化学研究的一个新方向。根据瓜环外壁作用类型,研究内容包括:1)瓜环外壁取代烷基推电子效应对瓜环基超分子配位聚合物形成的促进作用;2)瓜环外壁与化合物芳环的相互作用对瓜环基超分子配位聚合物形成的促进作用;3)瓜环外壁与无机阴离子的相互作用对瓜环基超分子配位聚合物形成的促进作用;4)瓜环外壁取代羟基的配位作用对瓜环基超分子配位聚合物形成的促进作用。这些瓜环基超分子配位聚合物可能具有吸附捕集、分离提纯和分析等功能性质。

A series of supramolecular polymers based on direct coordination of metal ions to the cucurbit [ n ] urils with the aid of the outer-surface interactions of cucurbit [ n ] urils could become a new branch in Q [ n ] s-based coordination chemistry. According to the characteristics of the outer-surface interactions of cucurbit [ n ] urils, they can be catalogued in： 1 ） electrodonating effect of the alkyl-substituted groups on the outer-surface of cucurbit[ n] urils; 2） interactions between methine or methylene moieties on the outer-surface of cucurbit[ n] urils and aromatic moiety of organic structure directing agents ; 3 ） interactions between methine or methylene moieties on the outer-surface of cucurbit[ n] urils as well as ion-dipole interactions between positive portal carbonyl carbon of cucurbit [ n ] urils and chloride anion from polychlorometallate anions; 4） coordination interaction between hydroxyl groups on the outer-surface of cucurbit [ n ] urils with metal ions. Based on the characteristics of the supramolecular coordination polymers, they have potential applications in the fields, such as absorption, analysis, separation, isolation, and so on.