Hydrothermal syntheses and characterizations of two novel heteropolytungstate supported coordination compounds |
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| Authors: | Ji-Wen Cui Xiao-Bing Cui Hai-Hui Yu Ji-Qing Xu Zhi-Hui Yi Wei-Jie Duan |
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| Institution: | 1. College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130021, PR China;2. College of Chemistry and Pharmacy, Jiamusi University, Jiamusi 154000, PR China |
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| Abstract: | Two novel heteropolytungstates, Ni(2,2′-bpy)3]1.5{PW10.79V1.21O40(VO)0.5Ni(2,2′-bpy)2L]} · 0.5H2O (1) (2,2′-bpy = 2,2′-bipyridine, L = 0.5H2O + 0.5OH?) and KPW12O40Ni(1,10-phen)2(OH)]2] · 2H2O (2) (1,10-phen = 1,10-phenanthroline), have been synthesized under hydrothermal conditions and characterized by IR, XPS, and X-ray diffraction analyses. The polyoxoanion of 1 is a mono-capped α-Keggin cluster which supports a metal coordination fragment Ni(2,2′-bpy)2L]1.5+, while the structure of 2 exhibits a 1D chain constructed from pseudo-Keggin cluster bi-supported transition metal complexes linked by K+ ions. Studies of magnetic properties indicated the presence of paramagnetic behaviours for compounds 1 and 2. |
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