Synthesis and characterization of platinum metal complexes of dibenzyl sulphoxide and tetramethylene sulphoxide

Abstract

Tetramethylene sulphoxide (TMSO) and dibenzyl sulphoxide (DBSO) use sulphur or oxygen or both as donor sites. Platinum metal chlorides are found to form complexes of the types, ML₃Cl₃ [where M = Ru(III), Rh(III), Ir(III), L = TMSO, DBSO] and platinum(II) yields the complex Pt(DBSO)₂Cl₂. The compounds have been characterized by elemental analyses, molar conductance measurements and IR spectral analysis. Fac- structures has been assigned for ML₃Cl₃but mer- is found for Ru₂(DBSO)₄CI₆ and Rh(DBSO)₃Cl₃ The ESR spectra reveal axial distortion with g₁ = 2.192 and g₂ = 1.892 for Ru₂(DBSO)₃CI₃ and g = 2. 172 for Ru(TMSO)₃CI₃.