Thermal and Spectral Studies of Y(III) and Lanthanide(III) Complexes with Mesaconic Acid

被引：0
|
作者：
W. Brzyska
A. Tarnawska
A. Twardowska
E Wiśniewska
机构：
[1] Maria Curie-Skłodowska University,Department of General Chemistry, Faculty of Chemistry
来源：
Journal of Thermal Analysis and Calorimetry | 2002年 / 68卷
关键词：
DTA; IR spectra; mesaconate; rare earth elements; synthesis; TG;
D O I：
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学科分类号：
摘要：
Y(III) and lanthanide(III) mesaconates were prepared as crystalline solids with general formula Ln2(C5H4O4)3⋅nH2O, where n=7 for La−Pr, n=4 for Y,Nd−Ho, n=8 for Er−Lu. IR spectra of the prepared mesaconates suggest that carboxylate groups are bidentate bridging anf chelating. During heating the hydrated complexes are dehydrated in one (Y, Nd−Lu) or two steps (La−Pr) and then decompose directly to oxides (Y, Ce, Pr, Sm, Gd−Lu) or with intermediate formation Ln2O2CO3 (La, Nd, Eu).
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页码：123 / 129
页数：6
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