Iodo Derivatives of Bimetallic Fe—Pd and Fe—Pt Complexes. Crystal Structures of \(\)
2001
Iodo derivatives of diphosphine-bridged heterobimetallic Fe—Pd and Fe—Pt complexeshave been prepared in which an alkoxysilyl ligand bridges the two metals in a μ2−η2-SiO manner. In the course of their synthesis by halide exchange from \(\) (dppx = dppm (Ph2 PCH2 PPh2) or dppa (Ph2PNHPPh2); M = Pd or Pt), loss of the alkoxysilyl ligand occurred resulting in the formation of complexes in which a bridging iodide has replaced, as a 3e−-donor, the bridging alkoxysilyl ligand. These complexes of formula \(\) (M = Pd, Pt are better prepared by reaction of \(\) with [MI2(cod)]. The crystal structures of \(\) (2a), \(\) (2b), and \(\) · CH2Cl2 (3b · CH2Cl2) have been determined by X-ray diffraction.
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