Transformation of the [MnII 2MnIII 2(hmp)6]4+ core into [CoIII 2MnII 2(hmp)6]4+ in the reaction of the [Mn4(hmp)6(NO3) 2(H2O)2] cluster with [CoX4] 2- (X = Cl, Br)

Lyudmila A. Kushch, Eduard B. Yagubskii, Sergey V. Simonov, Rimma P. Shibaeva, Elizaveta A. Suturina, Nina P. Gritsan, Andrei V. Sadakov, Il'Ya V. Sulimenkov

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The reactions of [Mn4(hmp)6(NO3) 2(H2O)2](ClO4)2 with (Bu4N)2[CoX4] (X = Cl, Br) in CH3CN have been studied and the new heterometallic tetranuclear clusters [Co III 2MnII 2(hmp)6Cl 2(CH3CN)2]MnIICl4· 3CH3CN and [CoIII 2MnII 2(hmp)6Br2(CH3CN) 2]MnIIBr4·4CH3CN have been synthesized and characterized by TGA, electrospray ionization mass spectrometry, single-crystal X-ray diffraction, and magnetic measurements. The magnetic properties of the heterometallic clusters were analyzed by DFT and ab initio calculations. The first heterometallic tetranuclear clusters containing a [CoIII 2MnII 2] core have been synthesized and fully characterized. The magnetic susceptibility measurements in the temperature range 4-300 K reveal a rather strong intracluster antiferromagnetic coupling between the oxo-bridged MnII ions, in agreement with the results of DFT and ab initio calculations.

Original languageEnglish
Pages (from-to)5603-5611
Number of pages9
JournalEuropean Journal of Inorganic Chemistry
Issue number32
DOIs
Publication statusPublished - 1 Nov 2013

Keywords

  • Cluster compounds
  • Cobalt
  • Magnetic properties
  • Manganese
  • Quantum chemistry

ASJC Scopus subject areas

  • Inorganic Chemistry

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