Thermal and Spectral Studies of Y(III) and Lanthanide(III) Complexes with Mesaconic Acid |
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Authors: | Brzyska W Tarnawska A Twardowska A Wi?niewska E |
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Institution: | (1) Department of General Chemistry, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl 20031 Lublin, Poland |
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Abstract: | 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).
This revised version was published online in August 2006 with corrections to the Cover Date. |
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Keywords: | DTA IR spectra mesaconate rare earth elements synthesis TG |
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