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A Novel Ring-Shaped Phosphovanadomolybdate Built by Bicapped Pseudo-Keggin Clusters and Copper(II) Complexes

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journal contribution
posted on 03.11.2010 by Jingyang Niu, Guo Chen, Junwei Zhao, Chunfa Yu, Pengtao Ma, Jingping Wang
A novel organic−inorganic hybrid phosphovanado-molybdate Na(H2O)6[Cu(2,2′-bipy)3]2[Cu(1,2-dap)2(H2O)]6H[Cu(1,2-dap)2{PMoVI8VIV4O40(VIVO)2Cu(1,2-dap)2}]6·2H2O (1) (1,2-dap = 1,2-diaminopropane, 2,2′-bipy = 2,2′-bipyridine) has been hydrothermally synthesized and characterized by elemental analyses, IR, TG-DTA, X-ray photoelectron spectroscopy (XPS), X-ray powder diffraction (XRPD), and single crystal X-ray diffraction. Interestingly, 1 represents the first example of cyclohexane-like ring-shaped phosphovanadomolybdate constructed from six bicapped pseudo-Keggin clusters [PMoVI8VIV4O40(VIVO)2Cu(1,2-dap)2]5− linked by six [Cu(1,2-dap)2]2+ linkers. Notably, adjacent rings are connected together, forming the 3-D supramolecular structure through hydrogen bonding interactions.

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