Transition-Metal Bimaleates and Their Solid Solutions:
Synthesis, Structural, and Thermoanalytical Study
L. I. Yudanova, V. A. Logvinenko, L. A. Sheludyakova, N. F. Yudanov, G. N. Chekhova,
N.I.Alferova, V. I. Alekseev, P. P. Semyannikov, and V. I. Lisoivan
Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences,
pr. Akademika Lavrent’eva 3, Novosibirsk, 630090 Russia
Received May 15, 2007
Abstract—Transition-metal hydrogen maleates of composition M(C4H3O4)2 · 4H2O, where M = Mn, Fe, Co,
and Ni, and their solid solutions were synthesized and characterized by X-ray crystallography, IR spectroscopy,
mass spectrometry, and thermal analysis. X-ray crystallography and IR spectroscopy showed that both intramo-
lecular and intermolecular H-bonds exist in these compounds. The generation of continuous substitutional solid
solutions with cation substitution in these compounds was studied. The thermolysis mechanism was studied for
both transition-metal hydrogen maleates and their solid solutions. The composite produced by thermolysis is
stable up to 1200
in flowing helium.
DOI: 10.1134/S0036023608090180
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