CATALYSIS BY POLYOXOMETALATES .1. SUPPORTED POLYOXOANIONS OF THE KEGGIN STRUCTURE - SPECTROSCOPIC STUDY (IR, RAMAN, UV) OF SOLUTIONS USED FOR IMPREGNATION

被引：104

作者：

FOURNIER, M ^{[1
]}

THOUVENOT, R ^{[1
]}

ROCCHICCIOLIDELTCHEFF, C ^{[1
]}

机构：

[1] LAB PHYS CHIM INORGAN, CNRS, URA 419, 4 PL JUSSIEU, F-75252 PARIS 05, FRANCE

来源：

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS | 1991年 / 87卷 / 02期

关键词：

D O I：

10.1039/ft9918700349

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Solutions of Keggin-structure polyoxometalates have been studied by IR, Raman and UV spectroscopies, with various solvents and counterions. For the tetraalkylammonium compounds, cation-anion aggregates are observed. This model of cation-anion aggregates can be applied to the solutions of the acids in DMF and DMSO. The different behaviour of the acids in water, acetonitrile and acetone can be explained in terms of anion-anion interactions, similar to those existing in the solid state. The results are discussed in connection with the use of polyoxometalate solutions for preparing supported catalysts by impregnation.

引用

页码：349 / 356

页数：8

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