Two new hybrid compounds assembled from Keggin phosphotungstates,cobalt/zinc cations and V-shaped imidazole ligands |
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| Institution: | 1. Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center for Atmospheric Environment & Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, Jiangsu, PR China;2. State Key Laboratory of Coordination Chemistry, Nanjing University, Nanjing 210093, PR China;3. Institute of Chemical Materials, Chinese Academy of Engineering Physics, Mianyang 621999, Sichuan, PR China |
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| Abstract: | Two new inorganic–organic hybrid compounds, Co(H2O)2(bimb)2]2PWVWVI11O40] (1) and Zn3(H2O)4(bimb)4]PWV3WVI9O40] (2) (bimb = 1,3-bis(1-imidazoly)benzene) have been obtained and characterized by routine methods. Compounds 1 and 2 are synthesized under the same hydrothermal conditions except for alternation of the metal cations, however, their eventual structures are different. Compound 1 exhibits a 1D chain, whereas 2 shows a complicated 3D framework. The distinct structural features of the two compounds indicate that metal cations should have great effects on the structures of POM-based organic–inorganic hybrid compounds. The electrochemical properties of 1 and 2 have been also investigated, and the results show that 1 has a good electrocatalytic activity toward reduction of hydrogen peroxide (H2O2) molecules ascribed to W-centers. |
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| Keywords: | Polyoxometalate Organic–inorganic hybrids Electrocatalytic property |
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