title: Synthesis, characterization, and electrochemical properties of mono-, di-, and trinuclear transition Metal [60]fullerene complexes containing diphosphine cis-Ph2PCH=CHPPh2 ligand.
abstract: New transition metal fullerene complexes containing cis-Ph2PCH=CHPPh2 (dppet) ligand have been investigated. The mononuclear complexes (etau2-C60)M(cis-dppet) (1, 2; M = Pd, Pt) were prepared by reaction of C60 with M(dba)2 (dba = dibenzylideneacetone) followed by treatment with cis-dppet, while the in situ prepared 1 and 2 reacted with M1(PPh3)4 to afford dinuclear complexes (eta2 : eta2-C60)M(cis-dppet)M1 (PPh3)2 (3-6; M, M1 = Pd, Pt). Similarly, trinuclear complexes (eta2 : eta2-C60) M(cis-dppet)M1 (dppr) (7-10; M, M1 = Pd, Pt; dppr = (eta5-Ph2PC5H4)2Ru) could be synthesized by reaction of the in situ prepared 3-6 with dppr. 1-10 were characterized by elemental analysis and spectroscopy. Cyclic voltammetric studies on 2 (M = Pt), 3 (M = Pd, M1 = Pd) and 9 (M = Pt, M1 = Pd) provided further evidence for the eta2-coordination of C60 to one metal fragment or two metal fragments in these complexes.
authors: Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, P. R. China.
authors: Li-Cheng
authors: LC
authors: Song
authors: Fu-Hai
authors: FH
authors: Su
authors: Liang-Xing
authors: LX
authors: Wang
authors: Xiao-Guang
authors: XG
authors: Zhang
authors: Hu-Ting
authors: HT
authors: Wang
authors: Qing-Mei
authors: QM
authors: Hu
mesh_terms: D004563:Electrochemistry / Q000379:methods*; D037741:Fullerenes / Q000737:chemistry*; D008024:Ligands; D008670:Metals / Q000737:chemistry*; D008956:Models, Chemical; D036103:Nanotechnology / Q000379:methods*; D010165:Palladium / Q000737:chemistry*; D010720:Phosphines / Q000737:chemistry*; D010984:Platinum / Q000737:chemistry*; D012428:Ruthenium / Q000737:chemistry*
chemical_list: D037741:Fullerenes; D008024:Ligands; D008670:Metals; D010720:Phosphines; D010984:Platinum; D010165:Palladium; D012428:Ruthenium; C069837:fullerene C60