Synthesis and Characterization of Tris[<i>P,P,P',P'</i>-Tetramethylimidobis (Phosphine Sulfido)<i>S,S'</i>] Bismuth(III)

Abstract

Abstract Complexes of tetramethylimidodithiodiphosphinate, [(CH3)2P(S)N(S)P(CH3)2]-, are relatively rare in the literature. The bis-complexes of Co(II), Ni(II), and Fe(II) as well as a few other divalent cations have been reported.1,2 and the crystal structure of the Fe(II) and Ni(II) complexes have been Determined3,4 A bis-complex of Pb(II) has also been reported.5 The tetraphenylimidodithiodiphosphinate ligand has gained a great deal more attention with several bis-and tris-complexes having been reported for both main group and transition elements.1,2,6 A crystal structure of the free protonated ligand has been determined as well.7