Hydrothermal synthesis, structure and properties of a new 3D two-fold Co-based coordination framework

A new 3D coordination polymer, [Co₂(MIP)₂(BMIP)]<i>_n</i> (<b>1</b>), [H₂MIP = 5-methyl-isophthalic acid, BMIP = 1,5-bis-(2-methyl-imidazol)pentane] has been synthesized and characterized by single crystal X-ray diffraction analysis. The results of structural analyses show that <b>1</b> has a two-fold interpenetrated 3D network with a <b>pcu</b> topology. In addition, the luminescent, electrochemical properties and degradation of MB and MO of the complex were studied. The photocatalytic mechanism was proposed and confirmed by trapping experiments of radical species.

本研究合成了一种新型三维配位聚合物[Co₂(MIP)₂(BMIP)]_n（化合物1），其中H₂MIP为5-甲基间苯二甲酸（5-methyl-isophthalic acid），BMIP为1,5-二(2-甲基咪唑)戊烷（1,5-bis-(2-methyl-imidazol)pentane），并通过单晶体X射线衍射分析完成了结构表征。结构分析结果表明，化合物1具有pcu拓扑的二重互穿三维网络结构。此外，本研究还考察了该配合物的发光性能、电化学性能，以及其对MB和MO的降解性能；提出了光催化机理，并通过自由基捕获实验对该机理进行了验证。