Syntheses, Structures and Photocatalytic Degradation Properties of Two Copper(Ⅱ) Coordination Polymers with Flexible Bis(imidazole) Ligand  

作　　者：ZHANG Yong QIN Hong-Ni LI Bao-Long WU Bing 张勇;覃鸿妮;李宝龙;吴冰(China Suzhou Industrial Park Institute of Services Outsourcing,Suzhou 215123,China;State and Local Joint Engineering Laboratory for Functional Polymeric Materials,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China)

机构地区：[1]China Suzhou Industrial Park Institute of Services Outsourcing,Suzhou 215123,China [2]State and Local Joint Engineering Laboratory for Functional Polymeric Materials,College of Chemistry,Chemical Engineering and Materials Science,Soochow University,Suzhou 215123,China

出　　处：《Chinese Journal of Structural Chemistry》2021年第5期595-602,528,共9页结构化学（英文）

基　　金：supported by the Natural Science Foundation of Jiangsu Province(No.BK20161212);the Priority Academic Program Development of Jiangsu Higher Education Institutions;the project of scientific and technological infrastructure of Suzhou(SZS201905)。

摘　　要：Two copper(Ⅱ) coordination polymers {[Cu(bib)(nip)]·1.5 H_(2)O}_(n)(1) and [Cu_(2)(bib)(glu)_(2)]_(n)(2)(bib = 1,4-bis(2-methyl-imidazol-1-yl)butane, H2nip = 5-nitroisophthalic acid, H2glu = glutaric acid) were synthesized by the hydrothermal method and characterized by single-crystal X-ray diffraction, elemental analyses, IR and solid-state diffuse-reflection spectra. 1 forms a 2D network with the point symbol of(4~4·6^(2)) and 2D → 2D polythreaded network. 2 constructs the 6-connected 3D network based on the [Cu_(2)(COO)_(2)] dimer with the point symbol of(4~4·6~(10)·8). The energy band gaps(Eg) of 1 and 2 were 2.453 and 2.162 eV, respectively. 1 and 2 present high photocatalytic activity for the degradation of methylene blue under visible light irradiation.

关 键 词：coordination polymer structure 3D network photocatalysis 1 4-bis(2-methyl-imidazol-1-yl)butane 

分 类 号：O643.36[理学—物理化学] O641.4[理学—化学] X703[环境科学与工程—环境工程]