title: N-heterocyclic carbene-phosphinidyne transition metal complexes.
abstract: The N-heterocyclic carbene-phosphinidene adduct IPrPSiMe3 is introduced as a synthon for the preparation of terminal carbene-phosphinidyne transition metal complexes of the type [(IPrP)MLn ] (MLn =(η(6) -p-cymene)RuCl) and (η(5) -C5 Me5 )RhCl). Their spectroscopic and structural characteristics, namely low-field (31) P NMR chemical shifts and short metal-phosphorus bonds, show their similarity with arylphosphinidene complexes. The formally mononegative IPrP ligand is also capable of bridging two or three metal atoms as demonstrated by the preparation of bi- and trimetallic RuAu, RhAu, Rh2 , and Rh2 Au complexes.
authors.affiliation: Institute für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig (Germany) http://www.tu-braunschweig.de/iaac.
authors.forename: Adinarayana
authors.initials: A
authors.lastname: Doddi
authors.forename: Dirk
authors.initials: D
authors.lastname: Bockfeld
authors.forename: Thomas
authors.initials: T
authors.lastname: Bannenberg
authors.forename: Peter G
authors.initials: PG
authors.lastname: Jones
authors.forename: Matthias
authors.initials: M
authors.lastname: Tamm
keywords: N-heterocyclic carbenes; phosphinidenes; phosphinidynes; phosphorus ligands; transition metals