Synthesis, characterisation and voltammetric study of a β-Keggin-type [PW12O40]3- complex

被引：60

作者：

Himeno, S ^{[1
]}

Takamoto, M

Ueda, T

机构：

[1] Kobe Univ, Fac Sci, Dept Chem, Kobe, Hyogo 6578501, Japan

[2] Kochi Univ, Fac Sci, Dept Mat Sci, Kochi 7808520, Japan

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1999年 / 465卷 / 02期

关键词：

heteropolyoxometalates; alpha- and beta-[PW12O40](3-); voltammetry;

D O I：

10.1016/S0022-0728(99)00068-6

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The Keggin-type beta-[PW12O40](3-) complex was prepared, and the voltammetric behavior was compared with that of the Keggin-type alpha-[PW12O40](3-) complex. Both complexes underwent a four-step one-electron reduction in CH3CN where no protonation accompanied reduction. With the addition of CF3SO3H, the one-electron reduction waves were converted into two two-electron waves, followed by an ill-defined wave. The addition of water to the CH3CN + CF3SO3H system caused the first two-electron wave to split into two one-electron waves. The effect of acid or water on the voltammetric behavior is discussed also. (C) 1999 Elsevier Science S.A. All rights reserved.

引用

页码：129 / 135

页数：7

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