Reaction products of CO with square-planar platinum(II)-(N,N-chelate) complexes: Synthesis and reactivity

Article abstract of DOI:10.1016/0022-328x(95)05938-l

Carbon monoxide adds to [PtCl(R)(N-N)] (R = hydrocarbyl group; N-N = chelating N,N-ligand) to afford neutral five-coordinate [PtCl(R)(CO)(N-N)] or cationic four-coordinate [Pt(R)(CO)(N-N)]⁺ complexes, depending on the the sterical crowding of the N,N-ligand. For R-aryl, a migratory insertion process follows under mild conditions and the corresponding acyl species are obtained. Some reactions of the five-coordinate adducts with nucleophiles are reported, and a substitution at the metal or an addition to the coordinated carbon monoxide are described.