title: A bimetallic Ru2Pt complex containing a trigonal-planar mu3-carbido ligand: formation, structure, and reactivity relevant to the Fischer-Tropsch process.
abstract: The bimetallic Ru(2)Pt complex [(Cp*Ru)(2)(mu(2)-NHPh)(mu(2)-H)(mu(3)-C)PtMe(PMe(3))(2)][OTf] (3; Cp* = eta(5)-C(5)Me(5)) containing a planar three-coordinate carbido ligand has been prepared in 93% yield by thermal isomerization of the bridging methylene precursor [(Cp*Ru)(2)Me(mu(3)-NPh)(mu(2)-CH(2))Pt(PMe(3))(2)][OTf] (2) via cleavage of the methylene C-H bonds. Exposure of the carbido complex 3 to carbon monoxide (1 atm) induced coupling of the carbido ligand with the nearby methyl and hydride ligands to produce the diruthenium ethylidene complex [(Cp*Ru)(2)(mu(2)-CHMe)(mu(2)-NHPh)(CO)(2)][OTf] (4) and the known triplatinum complex [Pt(CO)(PMe(3))](3). The crystal structures of 2, 3, and 4 (BPh(4) salt) are reported.
authors.affiliation: Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Gakuen-cho 1-1, Naka-ku, Sakai, Osaka 599-8531, Japan. takemoto@c.s.osakafu-u.ac.jp
authors.forename: Shin
authors.initials: S
authors.lastname: Takemoto
authors.forename: Hidenobu
authors.initials: H
authors.lastname: Morita
authors.forename: Kenji
authors.initials: K
authors.lastname: Karitani
authors.forename: Hideki
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Matsuzaka