Abstract
Heterometallic complexes with pyridine-N-oxide (PyO), Ru(NO)(NO2)4(OH)Ni(PyO)2(H2O)] · CH3COCH3 (I), [{Ru(NO)(NO2)2(μ-NO2)2(μ-OH)Co}2(μ-PyO)] · H2O · CH3COCH (II), and [Ru(NO)(NO2)4(OH)Cu(PyO)2 (III), are isolated in the reactions of Na2[Ru(NO)(NO2)4(OH)] with nitrates of the corresponding metals in the presence of the organic ligand. The compounds synthesized are characterized by IR spectra, thermal analysis, and X-ray diffraction analysis. Depending on the M2+ cation, the ruthenium cation is coordinated through the bidentate (III, Cu2+) or tridentate (I, Ni2+ and II, CO2+) mode involving the bridging OH group and one or two NO2 groups. The thermal decomposition of complex II results in the formation of a Co0.5Ru0.5 solid solution, which is thermodynamically stable under the decomposition conditions. The thermolysis of complexes I and III in a hydrogen atmosphere leads to the formation of metastable solid solutions.
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Original Russian Text © G.A. Kostin, A.O. Borodin, N.V. Kurat’eva, E.Yu. Semitut, 2013, published in Koordinatsionnaya Khimiya, 2013, Vol. 39, No. 4, pp. 244–250.
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Kostin, G.A., Borodin, A.O., Kurat’eva, N.V. et al. Synthesis, structures, and thermolysis of new heterometallic cobalt, nickel, and copper complexes with the [Ru(NO)(NO2)4(OH)]2− anion as a ligand. Russ J Coord Chem 39, 353–359 (2013). https://doi.org/10.1134/S1070328413040064
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DOI: https://doi.org/10.1134/S1070328413040064