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Syntheses,structural characterization,and properties of Mn(II) and Cd(II) complexes from 5-[4-(1H-imidazol-1-Yl)phenyl]-1H-tetrazole |
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| Authors: | Kuai H W Xia J J Li D H Hu T Jiang D Y |
| Institution: | 1.Faculty of Chemical Engineering, Huaiyin Institute of Technology, Huaian, 223003, P.R. China ;2.Key Laboratory for Traffic and Transportation Security of Jiangsu Province, Huaiyin Institute of Technology, Huaian, 223003, P.R. China ; |
| Abstract: | Reactions of Mn(II) and Cd(II) salts with 5-(4-(1H-imidazol-1-yl)phenyl)-1H-tetrazole (HL) under hydrothermal conditions result in complexes Mn(L)2(H2O)4] · 2H2O (I) and Cd(L)2(H2O)2] (II), which have been characterized by single crystal and powder X-ray diffractions (CIF files CCDC nos. 943861 (I), 943862 (II)), IR spectroscopy, element and thermogravimetric analyses. Two complexes exhibit structural diversity dependent on different metal salts. Complex I shows discrete mononuclear structure, which can be further linked to build a 3D supramolecular framework through hydrogen bonding interactions. Complex II displays 1D zigzag-chain structure, and an extended 3D framework can be formed by hydrogen bonding. Interestingly, tetranuclear water clusters were generated in I, which can be linked by Mn2+ ions to show 1D metal-bridged water cluster-chain structure. The present work provides an example that metal centers impact on coordination modes of ligand and consequent structural variation of resulted complexes. Moreover, fluorescence property of II was investigated. |
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