title: Palladium and platinum complexes of a benzannulated N-heterocyclic plumbylene with an unusual bonding mode.
abstract: Reaction of the N,N'-diisobutyl-substituted benzannulated N-heterocyclic plumbylene (NHPb) 1 with [Pd(PPh(3))(4)] and [Pt(PPh(3))(4)] gave the complexes [M(NHPb)(PPh(3))(3)] (M = Pd [2], Pt [3]). X-ray diffraction studies of both complexes showed an angle of ~125° between the plumbylene plane and the transition-metal-Pb axis, indicating coordination of the transition metal to the empty π orbital of the plumbylene Pb atom. The experimentally determined metric parameters of complexes [2] and [3] are discussed on the basis of DFT calculations.
authors.affiliation: Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstrasse 30, D-48149 Münster, Germany.
authors.forename: Dennis
authors.initials: D
authors.lastname: Heitmann
authors.forename: Tania
authors.initials: T
authors.lastname: Pape
authors.forename: Alexander
authors.initials: A
authors.lastname: Hepp
authors.forename: Christian
authors.initials: C
authors.lastname: Mück-Lichtenfeld
authors.forename: Stefan
authors.initials: S
authors.lastname: Grimme
authors.forename: F Ekkehardt
authors.initials: FE
authors.lastname: Hahn