title: Electrophilic ruthenium(VI) nitrido complex containing Kläui's oxygen tripodal ligand.
abstract: Treatment of [n-Bu4N][Ru(N)Cl4] with [AgL(OEt)] (L(OEt)- = [(eta5-C5H5)Co{P(O)(OEt)2}3]-) afforded the ruthenium(VI) nitrido complex [L(OEt)Ru(N)Cl2] (1), which reacted with PPh3 to give the ruthenium(IV) phosphiniminato complex [L(OEt)Ru(NPPh3)Cl2] (2). The cyclic voltammogram of 2 displays the RuIV/III couple at ca. 0 V vs ferrocenium/ferrocene. Treatment of 1 with Me3NO afforded [LOEtRu(NO)Cl2] (3), which reacted with Ag(OTf) (OTf- = triflate) to give the chloro-bridged tetranuclear ruthenium/silver complex [L(OEt)Ru(NO)Cl2]2[Ag(OTf)]2 (4). Treatment of 1 with Na2S2O3 gave the thionitrosyl complex [L(OEt)Ru(NS)Cl2] (5). The solid-state structures of 1-4 have been established by X-ray crystallography.
authors.affiliation: Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong, People's Republic of China.
authors.forename: Xiao-Yi
authors.initials: XY
authors.lastname: Yi
authors.forename: Tony C H
authors.initials: TC
authors.lastname: Lam
authors.forename: Yiu-Keung
authors.initials: YK
authors.lastname: Sau
authors.forename: Qian-Feng
authors.initials: QF
authors.lastname: Zhang
authors.forename: Ian D
authors.initials: ID
authors.lastname: Williams
authors.forename: Wa-Hung
authors.initials: WH
authors.lastname: Leung