Four Members of the Sandwich-Type Polytungstophosphate Family Based on Pentalacunary [HPW7O28]8– Building Blocks

Authors

  • Dongdi Zhang,

    1. Polyoxometalates Chemistry Key Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China, Fax: +86-378-3886876, http://ccce.henu.edu.cn
    2. Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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  • Yanhui Zhang,

    1. Polyoxometalates Chemistry Key Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China, Fax: +86-378-3886876, http://ccce.henu.edu.cn
    2. Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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  • Juan Zhao,

    1. Polyoxometalates Chemistry Key Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China, Fax: +86-378-3886876, http://ccce.henu.edu.cn
    2. Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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  • Pengtao Ma,

    1. Polyoxometalates Chemistry Key Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China, Fax: +86-378-3886876, http://ccce.henu.edu.cn
    2. Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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  • Jingping Wang,

    1. Polyoxometalates Chemistry Key Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China, Fax: +86-378-3886876, http://ccce.henu.edu.cn
    2. Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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  • Jingyang Niu

    1. Polyoxometalates Chemistry Key Laboratory of Henan Province, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China, Fax: +86-378-3886876, http://ccce.henu.edu.cn
    2. Institute of Molecular and Crystal Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, Henan 475004, China
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  • Dedicated to Professor Michael T. Pope on the occasion of his 80th birthday

Abstract

Four dimeric mononuclear sandwich-type tungstophosphate clusters of Na12H[FeIII(HPW7O28)2]·44H2O (1) and Na14[M(HPW7O28)2]·44H2O {M = CoII (2), CdII (3), MnII (4)} were successfully synthesized by reaction of Na2WO4·2H2O, H3PO4, and CH3COOH with FeCl3·6H2O, Co(CH3COO)2·4H2O, CdSO4·8H2O, and Mn(CH3COO)2·4H2O, respectively. Single-crystal X-ray diffraction analysis revealed that 14 are essentially isomorphous and crystallize in the triclinic space group Pequation image. Complexes 14 consist of two [HPW7O28]8– units incorporating a single FeIII, CoII, CdII, and MnII ion, respectively. Furthermore, the electrocatalytic behaviors of 14 in the reduction of nitrite were investigated.

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