Chemical Research in Chinese Universities ›› 1991, Vol. 7 ›› Issue (3): 143-147.

• Articles • Previous Articles     Next Articles

Preparation and Characterization of Chromium (Ⅲ)-Containing α-and β-Tungstosilicates(Ⅱ)

Peng Jun1, Qu Lunyu1, Xu Yihua2, Peng Weixian3, Zhao Yongnian3   

  1. 1. Department of Chemistry, Northeast Normal University, Changchun;
    2. Department of Chemistry, Jilin University, Changchun;
    3. Department of Physics, Jilin University, Changchun
  • Received:1990-10-21 Online:1991-08-24 Published:2011-09-09

Abstract: Two new compounds of A- type α-and β-K4.5H2.5[SiW9Cr3(OH2)3O37]·xH2O were synthesized. The two kinds of isomers of α-and β-SiW12-xCrx(x=2, 3) were identified by Second-derivative IR spectroscopy and cyclic voltammetry. The numbers of electrons involved in reductions were obtained by controlled potential electrolyses of the isomers.

Key words: Heteropoly complexes, Heteropoly acids, Heteropoly anions