Platinum-assisted preparation of PS ligands containing chiral centres; X-ray crystal structure of a dithiophosphinite platinum complex

The design and synthesis of some ligands containing P(III) bonded to sulfur (thiophosphinites) and chiral centres is described in this paper.Their complexes with platinum (II), [PtCl2L], (L = bidentate dithiophosphinite) have been prepared and characterised and it has been shown that in many cases, the coordination to platinum protects these ligands from decomposition processes operated by moisture and oxygen. The first example of X-ray crystal structure of a platinum coordinated dithiophosphinite is described for complex cis-[PtCl2L], [L = meso-2,3-bis(diphenylthiophosphinito)-dimethyl-succinate], 4a.

Graphical abstractThe design and synthesis of some ligands containing P(III) bonded to sulfur (thiophosphinites) and chiral centres is described in this paper.Their complexes with platinum (II), [PtCl2L], (L = bidentate dithiophosphinite) have been prepared and characterised and it has been shown that the coordination to platinum protects these ligands from decomposition processes. The first example of X-ray crystal structure of a platinum coordinated dithiophosphinite is described for complex cis-[PtCl2L], [L = meso-2,3-bis(diphenylthiophosphinito)-dimethyl-succinate], 4a.Figure optionsDownload full-size imageDownload as PowerPoint slide