Synthesis and characterization of new ruthenium(II) complexes containing diisopropylmethylphosphine

Abstract

The reaction between RuCl₃ and PⁱPr₂Me in 2-methoxyethanol yielded the five-co-ordinate complex [RuCl₂(CO)(PⁱPr₂Me)₂] in which the phosphine groups show a cisoid arrangement. The co-ordination sphere of the ruthenium nucleus can be completed with neutral ligands such as CO, ^tBuNC, Hpz, 3,5-dimethylpyrazole and HNCPh₂. Likewise, it reacts with S-donor reagents like PhSH and 2-sulfanylpyridine and readily undergoes metathesis reactions with salts of some chelating ligands like NaS₂CNEt₂, KS₂COR (R = Me, Et or ⁱPr) and K(acac) which are bonded in a bidentate mode.