The formation of polymeric structures in the M2+-VO2+ systems (M2+ = Sr2+, Ca2+) containing substituted malonate anionsстатья
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Аннотация:The synthesis and crystal structures of the polymeric compounds of vanadyl (VO2+) and alkaline-earth metal cations (Sr2+ and Ca2+) with the anions of substituted malonic acid analogs, R(COOH)2, were described. Reactions of vanadyl sulfate (VOSO4•3H2O) with calcium and strontium salts of cyclopropane-1,1-dicarboxylic (H2Cpdc, C3H4(COOH)2), cyclobutane-1,1-dicarboxylic (H2Cbdc, C4H6(COOH)2), and butylmalonic acids (H2BuMal, C4H10(COOH)2) gave polymeric structures with different (from 1D to 3D) dimensionality. The structure and dimensionality of the compound depends on the size of the substituent in the carboxylate dianion and the radius of the alkaline-earth metal ion.