Dithiocarbonato nickel, palladium and platinum complexes bearing bis(diphenylphosphino)ferrocene: synthesis and X-ray structure determination

Abstract

The dithiocarbonato metal complexes M(κ2S,S-S2CO)(κ2P,P-dppf) {M= Ni, Pd, Pt; dppf= bis(diphenylphosphino)ferrocene} are obtained from the reaction of the metal(II) complexes [M(κ2S,S-S2COEt)2] with the dppf ligand or from the chloride substitution of M(κ2P,P-dppf)Cl2 by the O-ethyldithiocabonato anion. These complexes are produced by C-O bond cleavage by the O-ethyldithiocarbonato anion present in solution. These new complexes have been characterized by UV-Vis, NMR, IR spectroscopy and elemental analysis. The structures of the three complexes were further confirmed by single-crystal X-ray diffraction analysis. The dithiocarbonato metal complexes M(κ2S,S-S2CO)(κ2P,P-dppf) {M= Ni, Pd, Pt, dppf= bis(diphenylphosphino)ferrocene} are obtained from the reaction of the metal(II) complexes [M(κ2S,S-S2COEt)2] with the dppf ligand or from the chloride substitution of M(κ2P,P-dppf)Cl2 by the O-ethyldithiocabonato anion. These new complexes have been characterized by UV-Vis, NMR, IR spectroscopy and elemental analysis. The structures of complexes 1–3 were further confirmed by single-crystal X-ray diffraction analysis.