Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (2): 190.

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Synthesis and Characterization of Novel Peroxopolyoxometalates,[NBu4]3[M(O2)W5O18](M=Nb,Ta)

YU Hong-Kun, HUANG Zu-En, CAI Rui-Fang, DAI Wei-Lin   

  1. Department of Chemistry, Fudan University, Shanghai, 200433
  • Received:1996-12-31 Online:1998-02-24 Published:1998-02-24

Abstract: The title compounds have been prepared by dissolving sodium niobate(or sodium tantalate) and sodium tungstate in 30% hydrogen peroxide solution at -5 ℃ and adjusting pH=1 with hydrochloric acid. The results of elementary analysis, TG-DTG, IR, UV and XPS indicate that the title compounds have the hexametaiate type structure, and the O22- group is coordinated with niobium or tantalum.

Key words: Peroxo-niobotungstate, Peroxo-tantalotungstate, Synthesis, Characterization

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