title: Phosphido pincer complexes of platinum: synthesis, structure and reactivity.
abstract: A series of platinum(II) complexes supported by the tridentate bis(phosphine)phosphido ligand bis(2-diisopropylphosphinophenyl)phosphide) [(i)Pr-PPP] have been synthesized and characterized (1-4). X-Ray structural studies of [(i)Pr-PPP]PtCl (1) and [(i)Pr-PPP]PtCH(3) (3) complexes show meridional [(i)Pr-PPP] ligands around approximately square-planar platinum centers. Structural data and NMR analysis highlight a strong trans influence for the phosphido phosphorous donor, comparable to that of the anionic aryl carbon of the classic PCP pincer complexes. A series of thermally stable [PPP]Pt(IV) compounds, including [PPP]Pt(CH(3))(2)X [X = I (5) and SbF(6) (6)], were also synthesized. The study of the binding affinity of SO(2) and NO to complex 1 has also been addressed.
authors.affiliation: Department of Chemistry, University of Salerno, I-84084 Via Ponte don Melillo, Fisciano, Salerno, Italy. mmazzeo@unisa.it
authors.forename: Mina
authors.initials: M
authors.lastname: Mazzeo
authors.forename: Maria
authors.initials: M
authors.lastname: Strianese
authors.forename: Olaf
authors.initials: O
authors.lastname: Kühl
authors.forename: Jonas C
authors.initials: JC
authors.lastname: Peters
mesh_terms: D018360:Crystallography, X-Ray; D008024:Ligands; D009682:Magnetic Resonance Spectroscopy; D008958:Models, Molecular; D009569:Nitric Oxide / Q000737:chemistry; D009944:Organoplatinum Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010084:Oxidation-Reduction; D010720:Phosphines / Q000138:chemical synthesis / Q000737:chemistry*
chemical_list: D008024:Ligands; D009944:Organoplatinum Compounds; D010720:Phosphines; D009569:Nitric Oxide