title: Rate acceleration in olefin metathesis through a fluorine-ruthenium interaction.
abstract: The synthesis, structure, and performance of new ruthenium-based olefin metathesis catalysts, featuring fluorinated NHC ligands are presented. The introduction of halogen atoms into the N-heterocyclic carbene ligand profoundly alters the catalytic activity and can afford a more efficient catalyst. Structural investigations suggest that a fluorine-ruthenium interaction is responsible for this increased activity.
authors.affiliation: The Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA.
authors.forename: Tobias
authors.initials: T
authors.lastname: Ritter
authors.forename: Michael W
authors.initials: MW
authors.lastname: Day
authors.forename: Robert H
authors.initials: RH
authors.lastname: Grubbs