Russian Journal of General Chemistry

, Volume 89, Issue 10, pp 2052–2056 | Cite as

Complexation of 2,3-Dimethyl-5-hydroxy-6-aminopyrimidin-4(3H)-one with Copper(II) Ions in Nonaqueous Solutions

  • V. Yu. Mishinkin
  • S. A. Grabovskii
  • N. N. Kabal’nova
  • Yu. I. MurinovEmail author


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.


2,3-dimethyl-5-hydroxy-6-aminopyrimidine-4(3H)-one tetracoordinate complexes pentacoordinate complexes copper(II) ions 


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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.

Conflict of Interest

No conflict of interest was declared by the authors.


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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. Yu. Mishinkin
    • 1
  • S. A. Grabovskii
    • 1
  • N. N. Kabal’nova
    • 1
  • Yu. I. Murinov
    • 1
    Email author
  1. 1.Ufa Institute of Chemistry, Ufa Federal Research CenterRussian Academy of SciencesUfaRussia

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