Abstract: | The addition of dichloromethane solutions of carbon diselenide to liquid ammonia containing suspensions of platinum bis-phosphine dichlorides PtCl2(PRX)n] (n = 2, (PRX) = PMe3, PMe2Ph, PMePh2, and PPh3, n = 1, (PRX) = dppm, dppe, dppp, dppf) gives, after evaporation of the ammonia and extraction of the reaction residues with dichloromethane, the appropriate platinum bis-phosphine triselenocarbonate complexes in reasonable yields (40–60%). |