title: Yttrium alkyl complexes with a sterically demanding benzamidinate ligand: synthesis, structure and catalytic ethene polymerisation.
abstract: The benzamidinate yttrium dialkyl complexes [PhC(NAr)2]Y(CH2SiMe3)2(THF)n (Ar = 2,6-diisopropylphenyl; n = 1, 2) were prepared; when activated with [PhNMe2H][B(C6F5)4], the species with n = 1 polymerises ethene to polyethene with a narrow polydispersity.
authors.affiliation: Centre for Catalytic Olefin Polymerisation, Stratingh Institute of Chemistry and Chemical Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
authors.forename: Sergio
authors.initials: S
authors.lastname: Bambirra
authors.forename: Daan
authors.initials: D
authors.lastname: van Leusen
authors.forename: Auke
authors.initials: A
authors.lastname: Meetsma
authors.forename: Bart
authors.initials: B
authors.lastname: Hessen
authors.forename: Jan H
authors.initials: JH
authors.lastname: Teuben