Anion mediated switching from mono- to polymer structure in copper(II) complexes with 4,6-dimethylpyrimidinylhydrazone 1-phenyl-3-methyl-4-formylpyrazol-5-one

The novel hetarylhydrazone (H2L) has been synthesized by condensation of 2-hydrazino-4,6-dimethylpyrimidine with 1-phenyl-3-methyl-4-formylpyrazol-5-one and its complexes with CuCl2 and Cu(ClO4)2 have been obtained. The structures of the compounds were studied by means of NMR, IR, ESR spectroscopy, magnetic susceptibility measurements and X-Ray diffraction methods. The quantum-chemical modelling of the geometry and electronic structure of the hetarylhydrazone's tautomers has been carried out. The influence of the nature of acido-ligand on the structure of complex compounds has been established. Copper(II) chloride gives mono-nuclear complex [Cu(H2L)Cl2].H2O, while copper(II) perchlorate yields the polymeric structure ([Cu(HL)(CH3OH)]ClO4)n. For polymer compound no magnetic exchange interactions were detected. © 2019 Elsevier B.V.

Authors
Lyubchenko S.N.1 , Shcherbakov I.N.1 , Tupolova Y.P.1 , Popov L.D.1 , Levchenkov S.I.1, 2 , Morozov A.N.1 , Borodkin S.A.1 , Lazarenko V.A. 3 , Khrustalev V.N. 4 , Zubavichus Y.V. 5 , Minin V.V.6
Journal
Inorganica Chimica Acta
Language
English
Status
Published
Link
External link
DOI
10.1016/j.ica.2019.119284
Number
119284
Year
2019
Organizations
  • 1 Department of Chemistry, Southern Federal University, Rostov-on-Don, Russian Federation
  • 2 Federal Research Centre, The Southern Scientific Centre of the Russian Academy of Sciences, Rostov-on-Don, Russian Federation
  • 3 National Research Center “Kurchatov Institute”, Acad. Kurchatov Sq., 1, Moscow, 123182, Russian Federation
  • 4 Inorganic Chemistry Department, Peoples’ Friendship University of Russia, 6 Miklukho-Maklay St., Moscow, 117198, Russian Federation
  • 5 Boreskov Institute of Catalysis, Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russian Federation
  • 6 Kurnakov Institute of General and Inorganic Chemistry of Russian Academy of Sciences, Moscow, Russian Federation
Keywords
Crystal structure; Cu(II) complex; DFT; Hetarylhydrazone; Pyrazolone
Date of creation
24.12.2019
Date of change
24.12.2019
Short link
https://repository.rudn.ru/en/records/article/record/55567/
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