Study of the Possibility of Using Salt Metathesis Reactions for the Synthesis of the Neodymium and Samarium β-Diketiminate Chalcogenide Complexes. Unexpected Reduction of Sm(III) to Sm(II)

O. A. Mironova, T. S. Sukhikh, S. N. Konchenko, N. A. Pushkarevsky

Research output: Contribution to journalArticlepeer-review

Abstract

The possibilities of the ion exchange reactions between the neodymium(III) and samarium(III) diiodo-β-diketiminate complexes [Ln(Nacnac)I2(Тhf)2] (Ln = Nd (I), Sm (II); Nacnac is (Formula presented.) Thf is tetrahydrofuran) and potassium mono- and dichalcogenides K2Qn (Q = S, Se, Te; n = 1, 2) in Thf are studied. The ion exchange of iodide ligands by dichalcogenide ligands does not occur under these conditions. The reaction of complex I with K2Se affords the divalent samarium complex [Sm(Nacnac)I(Thf)2] (III). The sequence of the steps leading to the formation of this complex, including the reduction of the sterically hindered bis(diketiminate) complex, is proposed.

Original languageEnglish
Pages (from-to)241-250
Number of pages10
JournalRussian Journal of Coordination Chemistry/Koordinatsionnaya Khimiya
Volume46
Issue number4
DOIs
Publication statusPublished - 11 Apr 2020

Keywords

  • chalcogenide complexes
  • neodymium
  • samarium
  • sterically induced reduction
  • β-diketiminate complexes
  • GADOLINIUM
  • ACTIVATION
  • beta-diketiminate complexes
  • REACTIVITY
  • YTTRIUM
  • DIIODIDE
  • LIGANDS
  • LANTHANIDE CLUSTERS
  • CHEMISTRY
  • TETRAHYDROFURAN

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