Syntheses, molecular structures, and thermal decomposition of cyclopentadienyldicarbonylmanganese chalcogenide derivatives

A. A. Pasynskii, V. N. Grigoriev, Yu V. Torubaev, A. I. Blokhin, S. S. Shapovalov, Zh V. Dobrokhotova, V. M. Novotortsev

Research output: Contribution to journalArticlepeer-review


Transmetallation of the dichalcogenide complexes [CpMn(CO) 2]2(μ-X2) (X = S or Se) with M(CO) 5(thf) (M = Cr or W) afforded new heterometallic complexes CpMn(CO)2(μ-Se2)Cr(CO)5, CpMn(CO) 2(μ-Se2)[Cr(CO)5]2, CpMn(CO) 2(μ-X2)[W(CO)5]2 (X = S or Se), and CpMn(CO)2(μ-Se2)[Cr(CO)5][W(CO) 5]. According to the X-ray diffraction data, their molecular structures contain the cyclic MnX2 fragments coordinated by one or two M(CO)5 groups via the X atoms. Study of thermal decomposition of the manganese complexes with different Mn:M:X ratios (M = Cr, W; X = S, Se, Te) by differential scanning calorimetry (DSC) and thermogravimetry demonstrated that this process took place at rather low temperatures (100-400°C) and was accompanied by complete elimination of the CO groups followed by elimination of the Cp groups. At any metal to chalcogen ratio, the resulting inorganic chalcogenides contained no impurities of metal oxides and carbides.

Original languageEnglish
Pages (from-to)2689-2700
Number of pages12
JournalRussian Chemical Bulletin
Issue number12
StatePublished - 1 Dec 2003
Externally publishedYes


  • Chromium
  • Cyclopentadienyl complexes
  • Manganese
  • Metal carbonyls
  • Metal chalcogenides
  • Synthesis
  • Thermal decomposition
  • Tungsten
  • X-ray diffraction analysis

ASJC Scopus subject areas

  • Chemistry (all)


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