Palladium and platinum complexes with planar chiral 1,2-disubstituted ferrocenes containing phosphine and thioether donor groups

Three palladium(II) complexes and four platinum(II) complexes having general formula CpFe{1,2-C5H3(PPh2)(CH2SR)}MCl2 (M = Pd, R = Ph, Et and tBu; M = Pt, R = Ph, Et, tBu and Cy) have been synthesized by reaction of the corresponding CpFe{1,2-C5H3(PPh2)(CH2SR)} ligands with PdCl2(CH3CN)2 or PtCl2(CH3CN)2. These complexes have been fully characterized in solution and in solid state. In all cases, monomeric square planar complexes were obtained as pure diastereoisomers.

Graphical abstractCoordination of bidentate ferrocenyl phosphine thioether ligands to PdCl2 and PtCl2 leads to a single diastereoisomer in each case. The planar chirality of the ferrocene moiety exerts a perfect control on the chirality of the coordinated sulphur atom.Figure optionsDownload full-size imageDownload as PowerPoint slide