Acta Cryst. (2008). E64, m635-m636  [ doi:10.1107/S1600536808008970 ]

(Carbonyl-1C)bis[2,3(⁵)-cyclopentadienyl][₃-(S-methyl trithiocarbonato)methylidyne-1:2:3⁴C,S'':C:C](triphenylphosphine-1P)(₃-sulfido-1:2:3³S)dicobalt(II)iron(II) trifluoromethanesulfonate

A. R. Manning, C. J. McAdam, A. J. Palmer and J. Simpson

Abstract: The asymmetric unit of the title compound, [FeCo₂(C₅H₅)₂(C₃H₃S₃)S(C₁₈H₁₅P)(CO)]CF₃SO₃, consists of a triangular irondicobalt cluster cation and a trifluoromethanesulfonate anion. In the cation, the FeCo₂ triangle is symmetrically capped on one face by an S atom and on the other by a C atom linked to a methyl trithiocarbonate residue that bridges the Fe-C bond. Each Co atom carries a cyclopentadienyl ligand while the Fe atom coordinates to one carbonyl and one triphenylphosphine ligand. In the crystal structure, the cation is linked to the anion by a number of weak non-classical C-HO and C-HF hydrogen bonds and weak SO (3.317 Å) and SF (3.198 Å) interactions. The structure is further stabilized by additional intermolecular C-HO, C-HF and OO (2.942 Å) contacts, together with an unusual S(Cp) interaction (Scentroid distance = 3.385 Å), generating an extended network.

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