Abstract
Complex formation of 2,3-dimethyl-5-hydroxy-6-aminopyrimidine-4(3H)-one with copper(II) ions in nonaqueous solutions has been studied by means of electron, NMR, and IR spectroscopy as well as mass spectrometry. Sequential formation of tetra- and pentacoordinated copper(II) complexes with mono- and bidentate ligand coordination has been observed. The complexes composition has been determined by spectrophotometry using the molar ratios method. Donor centers of the ligand involved in coordination with copper(II) ions have been determined, and the complexes formation constant have been calculated.
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This study was performed in scope of the research at Ufa Institute of Chemistry, Russian Academy of Sciences (registration nos. AAAA-A17-117011910033-1, AAAA-A17-117011910035-5) using the equipment of the Center for Collective Usage “Chemistry” of Ufa Institute of Chemistry, Russian Academy of Sciences.
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Russian Text © The Author(s), 2019, published in Zhurnal Obshchei Khimii, 2019, Vol. 89, No. 10, pp. 1560–1565.
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Mishinkin, V.Y., Grabovskii, S.A., Kabal’nova, N.N. et al. Complexation of 2,3-Dimethyl-5-hydroxy-6-aminopyrimidin-4(3H)-one with Copper(II) Ions in Nonaqueous Solutions. Russ J Gen Chem 89, 2052–2056 (2019). https://doi.org/10.1134/S1070363219100104
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DOI: https://doi.org/10.1134/S1070363219100104