199176-29-9Relevant academic research and scientific papers
Complexes of distibinomethane ligands. 1. Iron, cobalt, nickel, and manganese carbonyl complexes
Hill, Angela M.,Levason, William,Webster, Michael,Albers, Isabel
, p. 5641 - 5647 (2008/10/08)
The reaction of Fe2(CO)9 in thf with Ph2SbCH2SbPh2 (dpsm) or Me2SbCH2SbMe2 (dmsm) produced [Fe(CO)4(η1-dpsm)] and [Fe(CO)4(μ-dmsm)Fe(CO)4], and Co2(CO)8 reacted with either distibine ligand (L-L) to give [Co2(CO)4(μ-CO)2(μ-L-L)]. Ni(CO)4 and dpsm gave [Ni-(CO)3(η1-dpsm)] and [Ni(CO)3(μ-dpsm)Ni(CO)3], while with dmsm only [Ni(CO)3(μ-dmsm)-Ni(CO)3] was isolated. Mn2(CO)10 reacted slowly with dpsm or dmsm in the presence of a [{(Cp)Fe(CO)2}2] catalyst to give [Mn2(CO)8(L-L)], but no reaction occurred with Re2(CO)10 under similar conditions. cis-[Mn(CO)4X(dpsm)] (X = Cl, Br, or I) and [Mn2(CO)8Br2(μ-dmsm)] were also prepared from the appropriate [Mn(CO)5X], but iron carbonyl halide derivatives were too unstable to isolate in the pure state. The complexes have been characterized by elemental analysis, IR and multinuclear NMR (1H, 13C{1H}, 55Mn, or 59Co) spectroscopy, and FAB mass spectrometry. The X-ray structures of dpsm, [Fe(CO)4(η1-dpsm)], and [Co2-(CO)4(μ-CO)2(μ-dmsm)] have been determined. No evidence for chelation by dmsm or dpsm was found, and Sb-C fission does not occur to significant extents in the reactions studied.
