羧酸基Pb(Ⅱ)配位聚合物的合成及影响因素研究进展

Research Progress on Synthesis and Influencing Factors of Carboxylic Pb(Ⅱ) Coordination Polymers

Pb(Ⅱ)具有较大的离子半径,可变的配位数(从2到10不等),配位几何结构多样,在配位过程中具有形成多核配合物的趋势,可形成稳定的框架结构。羧酸盐具有多功能的配位位点,可作为配位聚合物结构中的供体,特别是与金属配位,可进一步构建高维的晶体结构。羧酸基Pb(Ⅱ)配位聚合物的制备方法包括水热法、溶剂热法、声化学法等,不同的实验条件将形成不同的结构,导致产品性质迥异。本文介绍了羧酸基Pb(Ⅱ)配位聚合物的制备方法,综述了辅助配体、反应溶剂、阴离子配体等因素对所得产物结构与性质的影响,并对该类聚合物的应用前景进行了展望。

Pb(Ⅱ) has a large ionic radius, a variable coordination number(ranging from 2 to 10) and a variety of coordination geometric structures.It has a tendency to form multinuclear complexes during the coordination process, which can form a stable framework structure.Carboxylates have multifunctional coordination sites and can be used as donors in coordination polymer structures.They can further construct high-dimensional crystal structures, especially coordinated with metals.The preparation methods of carboxylic Pb(Ⅱ) coordination polymers include hydrothermal method, solvothermal method, sonochemical method, etc.Different experimental conditions will direct to different structures and result in different product properties.In this paper, the preparation methods of carboxylic Pb(Ⅱ) coordination polymers are introduced, the effects of auxiliary ligands, reaction solvents and anionic ligands on the structure and properties of the products are reviewed, and the application prospect of these polymers is prospected.