Zur Synthese phosphinkomplexierter d⁸-Metalltetrasulfide (Ni(II), Pd(II) und Pt(II)) mit Natriumpolysulfiden / On the Synthesis of Phosphine-Coordinated d⁸-Metal Tetrasulfides (Ni(II), Pd(II), and Pt(II)) with Sodium Polysulfides

Abstract

Abstract A short literature survey on phosphine-coordinated d 8 -metal tetrasulfides is given. Different results have been reported for the reactions of elemental sulfur with Pt(PPh 3 ) 4 (1). The reaction of sodium polysulfides, Na 2 Sx, with the corresponding dihalides results in a clear-cut manner in the formation of the already known compounds tetrasulfidoethylenebis(diphenylphosphine)palladium(II) (6) and tetrasulfido-bis(triphenylphosphine)-platinum(II) (5), and the new compound tetrasulfido-ethylenebis(diphenylphosphine)-nickel(II) (13). Degradation reactions of [Pt(S 5 ) 3 ] 2- (9) with triphenylphosphine, tri-p-tolylphosphine and ethylene-bis(diphenylphospbine) result in the formation of 5, and tetrasulfido-ethylenebis(diphenylphosphine)platinum(II) (4) and the new tetrasulfidobis( tri-p-tolylphosphine)platinum(II) (10). IR-spectra are reported.