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郎建平教授与张文华副教授合作在CrystEngComm发表研究论文

Construction of Zn(II) and Cd(II) metal–organic frameworks of diimidazole and dicarboxylate mixed ligands for the catalytic photodegradation of rhodamine B in water

Chun-Ning Lüa,   Min-Min Chena,   Wen-Hua Zhang*a(张文华),   Duan-Xiu Lia,   Ming Daia  and   Jian-Ping Lang*ab(郎建平)

 

a College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China

b State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences,

CrystEngComm 2015, 17, 1935-1943

 

A set of four metal–organic frameworks, namely, [Zn(1,3-BDC)(bmimb)]n (1), [Zn(1,4-BDC)(bmimb)]n (2), [Cd(1,3-BDC)(bmimb)]n (3), and [Cd(1,4-BDC)(bmimb)]n (4), have been prepared under solvothermal conditions (1,3-BDC = 1,3-benzenedicarboxylate; 1,4-BDC = 1,4-benzenedicarboxylate; bmimb = 4,4′-bis(4-methyl-1-imidazolyl)biphenyl). The long bmimb ligand (NN separation of ca. 14.1 Å) induces interpenetration of 1, 2 and 4 to increase both the framework stability and the density of effective catalytic metal centers. Compounds 1, 2 and 4 are interpenetrated 3D structures while 3 features a 2D structure. Compound 1 exhibits a parallel 2D → 3D polycatenation while 2 and 4 are isomorphous and feature 3D → 3D interpenetration. Compounds 1–4 fluoresce in the range of 350–372 nm in the solid state, whereas compounds 2 and 3 catalyze the almost complete photodegradation of rhodamine B (RhB) in water within ca. 4 h and can be recycled at least five times without loss in their crystallinity.

 

链接:

//pubs.rsc.org/en/Content/ArticleLanding/2015/CE/c4ce02074j#!divAbstract