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Russian Journal of Coordination Chemistry

, Volume 45, Issue 11, pp 795–798 | Cite as

Spacer-Armed Copper(II) Complex Based on Bis(2-pyidyl-1,2,4-triazol-3-yl)butane and 1-Aminoethane-1,1-Diphosphonic Acid

  • V. F. Shul’ginEmail author
  • N. S. Pevzner
  • M. A. Kiskin
  • E. A. Ugolkova
  • V. V. Minin
Article
  • 9 Downloads

Abstract

The new complex [Cu4L2(H2AEDP)2(H2O)4] · 34H2O was prepared by the reaction of CuSO4 with bis(2-pyridyl-1,2,4-triazol-3-yl)butane (H2L) and 1-aminoethane-1,1-diphosphonic acid (H4AEDP) and studied by X-ray diffraction (CIF file CCDC no. 1913117). The complex is a spacer-armed dimer in which two dimer subunits formed with participation of diphosphonate dianions are linked to each other via two doubly deprotonated bis(pyridyl)triazoles. The bridging diphosphonate anion exists in the zwitter ion form, bis(triazolyl)butane is coordinated via the nitrogen atoms of the pyridyl moiety and the deprotonated triazole ring. Analysis of the ESR spectrum of the polycrystalline sample attests to weak exchange interactions in the dimeric moieties.

Keywords:

copper(II) spacer-armed 1,2,4-triazole X-ray diffraction ESR spectroscopy 

Notes

ACKNOWLEDGMENTS

X-ray diffraction analysis was carried out using the research equipment of the Center for Collective Use of the Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences.

FUNDING

The study of complex compounds was carried out within the state assignment of the Kurnakov Institute of General and Inorganic Chemistry, RAS, in the field of fundamental scientific research and was supported by the Russian Science Foundation (project no. 18-13-00024).

CONFLICT OF INTEREST

The authors declare that they have no conflicts of interest.

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Copyright information

© Pleiades Publishing, Ltd. 2019

Authors and Affiliations

  • V. F. Shul’gin
    • 1
    Email author
  • N. S. Pevzner
    • 1
  • M. A. Kiskin
    • 2
  • E. A. Ugolkova
    • 2
  • V. V. Minin
    • 2
  1. 1.Vernadsky Crimean Federal UniversitySimferopolRussia
  2. 2.Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of SciencesMoscowRussia

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