Sulfobridged Polynuclear Complexes of Platinum(II) and Palladium(II)

When the platinum(II) and palladium(II) salts interact with ligands such as cystamine-(mercamine) HSCH 2 CH 2 NH 2 and 2-mercaptoethanol HSCH 2 CH 2 OH under certain conditions, polynuclear complexes of the compositions are obtained: [Pt 6 (SCH 2 CH 2 NH 2 ) 8 ]Cl 4 . 5H 2 O and [Pd 6 (SCH 2 CH 2 OH) 8 ]Cl 4 . In a comparative study of the IR and X-ray spectra of synthesized complexes and ligands, as well as the results of X-ray diffraction studies, it was established that sulfur atoms of 2-mercaptoethanol occupy a bridge position with a mixed coordination of ligands in the palladium complex. In the platinum(II) complex bidentate coordination of ligands is realized through sulfur and nitrogen atoms.