Formation of voltammetrically-active isopolyoxotungstate complexes in aqueous CH3CN media

被引：47

作者：

Himeno, S ^{[1
]}

Yoshihara, M

Maekawa, M

机构：

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

[2] Kinki Univ, Res Inst Sci & Technol, Higashiosaka, Osaka 5778502, Japan

来源：

INORGANICA CHIMICA ACTA | 2000年 / 298卷 / 02期

关键词：

electrochemistry; oxotungstate complexes;

D O I：

10.1016/S0020-1693(99)00436-3

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A new route to the preparation of voltammetrically-active isopolyoxotungstate complexes was developed by the presence of CH3CN in aqueous W(VI) solutions. In the presence of 40% (v/v) CH3CN as an auxiliary solvent, the [W6O19](2 -) complex was formed in equilibrium with the [W10O32](4 -) complex, which was subsequently transformed into the previously unknown alpha-Keggin-type [H4W12O40](4 -) complex at weaker acidities. The alpha-[H4W12O40](4 -) complex was characterized by voltammetric and spectroscopic behaviors. (C) 2000 Elsevier Science S.A. All rights reserved.

引用

页码：165 / 171

页数：7

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