title: Formation of P-C bond through reductive coupling between bridging phosphido and benzoquinolinate groups. Isolation of complexes of the Pt(II)/Pt(IV)/Pt(II) sequence.
abstract: The rational synthesis of dinuclear asymmetric phosphanido derivatives of palladium and platinum(II), [NBu(4)][(R(F))(2)M(μ-PPh(2))(2)M'(κ(2),N,C-C(13)H(8)N)] (R(F) = C(6)F(5); M = M' = Pt, 1; M = Pt, M' = Pd, 2; M = Pd, M' = Pt, 3; M = M' = Pd, 4), is described. Addition of I(2) to 1-4 gives complexes [(R(F))(2)M(II)(μ-PPh(2))(μ-I)Pd(II){PPh(2)(C(13)H(8)N)}] (M = M' = Pt, 6; M = Pt, M' = Pd, 7; M = M' = Pd, 8; M = Pd, M' = Pt 10) which contain the aminophosphane PPh(2)(C(13)H(8)N) ligand formed through a Ph(2)P/C^N reductive coupling on the mixed valence M(II)-M'(IV) [NBu(4)][(R(F))(2)M(II)(μ-PPh(2))(2)M'(IV)(κ(2),N,C- C(13)H(8)N)I(2)] complexes, which were identified for M(II) = Pd, M'(IV) = Pt (9), and isolated for M(II) = Pt, M'(IV) = Pt (5). Complex 5 showed an unusual dynamic behavior consisting in the exchange of two phenyl groups bonded to different P atoms, as well as a "through space" spin-spin coupling between ortho-F atoms of the pentafluorophenyl rings.
authors.affiliation: Departamento de Química Inorgánica, Instituto de Síntesis Química y Catálisis Homogénea, Universidad de Zaragoza-C.S.I.C., E-50009 Zaragoza, Spain.
authors.forename: Andersson
authors.initials: A
authors.lastname: Arias
authors.forename: Juan
authors.initials: J
authors.lastname: Forniés
authors.forename: Consuelo
authors.initials: C
authors.lastname: Fortuño
authors.forename: Antonio
authors.initials: A
authors.lastname: Martín
authors.forename: Mario
authors.initials: M
authors.lastname: Latronico
authors.forename: Piero
authors.initials: P
authors.lastname: Mastrorilli
authors.forename: Stefano
authors.initials: S
authors.lastname: Todisco
authors.forename: Vito
authors.initials: V
authors.lastname: Gallo
mesh_terms: D015394:Molecular Structure; D009944:Organoplatinum Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D017378:Quinolinic Acid / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D009944:Organoplatinum Compounds; D010720:Phosphines; D010984:Platinum; D010165:Palladium; D017378:Quinolinic Acid