LANTHANIDE AND URANYL SOLVATION IN ANHYDROUS ACETONITRILE

被引：6
作者：
BUNZLI, JCG
机构：
[1] Université de Lausanne, Institut de Chimie Minérale et Analytique, CH-1005 Lausanne
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 1993年 / 192卷 / 1-2期
关键词：
D O I：
10.1016/0925-8388(93)90245-I
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：
The interaction of Ln(III) and UO2(2+) ions with a strong donor, dimethylsulphoxide (DMSO) and a moderately coordinating anion, perchlorate, is investigated in anhydrous acetonitrile by means of Fourier transform IR and Raman measurements. The coordination mode of the ligands is determined, as well as the average coordination numbers. Perchlorate is bonded in the inner coordination sphere in both a monodentate and a bidentate fashion. Changes in coordination numbers of up to 2 are observed both within the lanthanide series and with the solvent composition, for instance upon the addition of DMSO. The data are interpreted in terms of equilibra between differently coordinated species. Whenever possible, apparent formation constants are calculated for the various solvates.
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页码：266 / 270
页数：5
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