基于瓜环外壁作用的瓜环超分子配位聚合物的合成及其功能研究

本项目拟利用瓜环外壁作用诱导的策略，设计并合成瓜环-金属超分子配位聚合物。根据瓜环外壁作用类型，研究内容包括：i) 利用瓜环外壁上取代烷基的推电子作用合成瓜环―金属超分子配位聚合物；ii) 利用有机导向剂中芳环与瓜环外壁作用合成瓜环―金属超分子配位聚合物；iii) 利用无机阴离子导向剂与瓜环外壁作用合成瓜环―金属超分子配位聚合物；iv) 利用瓜环外壁上羟基的配位作用合成瓜环―金属超分子配位聚合物。对所得超分子配位聚合物在吸附、分离、识别等功能性质的研究。通过对建立在瓜环外壁作用基础上的瓜环配位聚合物的合成及其功能研究，分别探究各瓜环外壁作用对瓜环―金属超分子配位聚合物合成促进作用机制，同时还需探究不同瓜环外壁作用共同对瓜环―金属超分子配位聚合物合成促进或抑制作用的机制，从而达到能动地设计、控制合成具有结构新颖、特定功能性质瓜环基超分子配位聚合物，发展和建立瓜环配位化学中一个新的研究方向。

In this project, we will design and synthesise a series of supramolecular polymers based on direct coordination of metal ions to the cucurbit[n]urils by using an induced strategy, in which the back-interaction of cucurbit[n]urils are the driving forces. Based on the chacaterastics of the back-interaction of cucurbit[n]uirls in the costruction of the supramolecular coordination polymers, the back-intractions include 1) electrodonating effect of the alkyl-substituted groups on the back of cucurbit[n]urils; 2) ∙∙∙ stacking between portal carbonyl groups of cucurbit[n]uril as well as C–H∙∙∙ interaction between methine or methylene moieties on the back of cucurbit[n]urils and aromatic moiety of organic structure inducers; 3) unusual hydrogen bonding between methine or methylene moieties on the back 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 back of cucurbit[n]urils with metal ions. Studies on the functions of these cucurbit[n]urils-based supramolecular coordination polymers. Using the back-interaction of cucurbit[n]urils strategy, one can not only constructe of novel poly-dimensional and polycomponents cucurbit[n]urils-based supramolecular coordination polymers, but also find new methods, new technologies and regular patterns to construct such supramolecular self-assemblies. Based on the characterestic of the supramolecular coordination polymers, these systems could be used in the fields, such as nano-technology, molecular machine, sensers and actuators, catalyst, energy storage technology and so on.