Formation of Diphosphate in the Presence of Vanadium(IV)–tpen Complex

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  • Kyouhei Sato
    Advanced Nanosciences and Biosciences, Graduate School of Innovative Life Science, University of Toyama
  • Kiyoshi Tsuge
    Department of Chemistry, Graduate School of Science and Engineering, University of Toyama
  • Kan Kanamori
    Advanced Nanosciences and Biosciences, Graduate School of Innovative Life Science, University of Toyama

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<jats:title>Abstract</jats:title> <jats:p>The reaction of VOBr2 with N,N,N′N′-tetrakis(2-pyridylmethyl)ethylenediamine (tpen) and NaH2PO4 (2:1:2 molar ratio) in an aqueous/ethanolic solution yielded purple crystals. X-ray crystal structure analyses revealed that the purple complex was a dinuclear vanadium(IV) complex bridged by a diphosphate anion, [(VIVO)2(µ-P2O7)(µ-tpen)]·10H2O. This indicates that a condensation reaction occurred between two phosphate ions during the reaction to form a phosphate–phosphate bond. A probable mechanism is proposed for the condensation reaction of two phosphate anions.</jats:p>

収録刊行物

  • Chemistry Letters

    Chemistry Letters 41 (12), 1608-1610, 2012-11-24

    Oxford University Press (OUP)

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