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2D Rhombus-grid networks constructed from vanadium-substituted Keggin-type polyoxomolybdophosphates and Cd/Zn complex fragments |
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| Authors: | Limei Dai Wansheng You Enbo Wang Xiaolan Wang Weiwei Li |
| Institution: | a Institute of Functionalized Materials, Department of Chemistry, Liaoning Normal University, Dalian 116029, PR China b Institute of Polyoxometalate Chemistry, Department of Chemistry, Northeast Normal University, Changchun 130024, PR China c Department of Chemistry, Heihe College, HeiHe, Heilongjiang 164300, PR China |
| Abstract: | Two 2D rhombic grid-like organic-inorganic hybrid compounds {M(2,2′-bpy)2}2{PMo11VO40}] (M = Cd(1), Zn(2); bpy = 2,2′-bipyridine) have been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, TG analysis, luminescence spectroscopy, X-ray powder diffraction and single-crystal X-ray diffraction. They are isomorphic and their structures can be considered that the Keggin-heteropolyanion PMo11VO40]4− are bridged by {M(2,2′-bpy)2} groups through the O-M-O bridges into a 2D covalent network. It is noteworthy that the adjacent layers stack each other to form 3D supermolecular structure via extended C-H?O interaction between Keggin-anions and 2,2′-bpy ligands of different layers. Furthermore, the electrochemical behavior of 1-CPE (1-modified carbon paste electrode) and 2-CPE and their electrocatalytic reduction of nitrite were investigated. |
| Keywords: | Hydrothermal synthesis Polyoxometalate Organic-inorganic hybrid Cd/Zn Electrochemistry |
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