Antiferromagnetic complexes with metal-metal bonds Part XXIX. Synthesis and molecular structures of heterochalcogenide binuclear complex [π-(CH3C5H4)Cr(μ-SPh)]2Se and trinuclear mixed-metal cluster [π-(CH3C5H4)2Cr 2(μSPh)](μ3-S)(μ3-Se)Co(CO) 2

A. A. Pasynskii, F. S. Denisov, Yu V. Torubaev, N. I. Semenova, V. M. Novotortsev, O. G. Ellert, S. E. Nefedov, K. A. Lyssenko

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

[Cp′Cr(CO)2(μSPh)]2 (Cp′ = π-CH3C5H4) obtained by the interaction of [Cp′Cr(CO)3]2 with Ph2S2 was decarbonylated to [Cp′Cr(CO)(μ-SPh)]2 which reacted with Se powder to give the antiferromagnetic complex [Cp′Cr(μ-SPh)]2(μ-Se) (μeff reduces from 0.79 down to 0.30 μB in the 290-80 K temperature range with exchange parameter - 2J = 552 cm-1), characterized by X-ray diffraction analysis (Cr-Cr 2.730, Cr-S 2.635, Cr-Se 2.401-2.396 Å, Cr-Se-Cr 69.4°). Another route to [Cp′Cr(μ-SPh)]2(μ-Se) was the interaction of [Cp′Cr(CO)3]2(υ-Se) with Ph2S2. Treatment of [Cp′Cr(μ-SPh)]2(μ-Se) with Co2(CO)8 results in the mixed-metal heterochalcogenide cluster Cp′2Cr2(μ-SPh)(μ3-S)(μ 3-Se)Co(CO)2 characterized by X-ray analysis (Cr-Cr 2.624, Cr-Co 2.602-2.625, Cr-μ3-S 2.32, Co-μ3-S 2.23, Cr-μ3-Se 2.43, Co-μ3-Se 2.30, Cr-μ-SPh 2.32 Å). The cluster is antiferromagnetic (μeff reduced from 0.73 down to 0.45 μB in the 290-80 K temperature range with exchange parameter - 2J = 688 cm-1).

Original languageEnglish
Pages (from-to)9-13
Number of pages5
JournalJournal of Organometallic Chemistry
Volume612
Issue number1-2
DOIs
StatePublished - 20 Oct 2000
Externally publishedYes

Keywords

  • Chalcogenides
  • Chromium
  • Cobalt
  • Cyclopentadienyl complexes
  • Magnetic properties
  • Metal carbonyls
  • Mixed-metal clusters
  • X-ray

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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