Isolation and Structural Characterization of Complexes Formed in the Reactions of [{C5H4(SiMe3)}2Fe 2(CO)4] and [{1,3-C5H3(SiMe3)2} 2Fe2(CO)4] with Elemental Sulfur

Mikiya Yamada, Hiromi Tobita, Shinji Inomata, Hiroshi Ogino

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The reactions of [CpS12Fe2(CO)4] and [CpS22Fe2(CO)4] with elemental sulfur afforded a tetrairon cluster containing two end-on type S2 ligands [CpS14Fe4S6] (1) and a diiron complex containing an end-on type S2 and a side-on type S2 ligands [CpS22Fe2S4] (2), respectively, where CpS1 and CpS2 stand for mono- and bis(trimethylsilyl)cyclopentadienyl ligands, respectively. From these results and the previously reported results which were obtained for the reactions of [Cp2Fe2(CO)4] and [Cp*2Fe2(CO)4] with elemental sulfur, it is suggested that [Cp′2Fe2S4] is an intermediate to give tetrairon sulfur clusters, where Cp* and Cp′ denote pentamethylcyclopentadienyl and substituted cyclopentadienyl ligands, respectively. X-Ray crystal structure analysis was carried out for the compounds 1 and 2. Crystallographic data are as follows: 1: Monoclinic, P21/c, a = 17.302(6), b = 18.646(3), c = 15.310(4) Å, β = 120.71(2)°, V = 4246(2) Å3, Z = 4, and R = 0.061 for 5850 reflections with |Fo| > 3σ(Fo); 2: Triclinic, space group P1, a = 12.602(2), b = 12.891(2), c = 11.401(1) Å, α = 114.52(1), β = 95.45(1), γ = 88.39(1)°, V = 1677.5(4) Å3, Z = 2, and R = 0.046 for 7343 reflections with |Fo| > 3σ(Fo).

Original languageEnglish
Pages (from-to)861-867
Number of pages7
JournalBulletin of the Chemical Society of Japan
Issue number4
Publication statusPublished - 1996 Apr

ASJC Scopus subject areas

  • Chemistry(all)


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