title: Chromium(III) and chromium(IV) bis(trimethylsilyl)amido complexes as ethylene polymerisation catalysts.
abstract: Oxidation of Cr[N(SiMe(3))(2)](2)(THF)(2) with iodine and dicumyl peroxide results in tetrahedral Cr(iv) Cr[N(SiMe(3))(2)](2)I(2) and trigonal planar Cr(iii) Cr[N(SiMe(3))(2)](OCMe(2)Ph)(2), respectively; both complexes have been characterised by single-crystal X-ray diffraction, and both are active for ethylene polymerisation with alkylaluminium co-catalysts.
authors.affiliation: Department of Chemistry, University of Prince Edward Island, Charlottetown, PE, Canada.
authors.forename: Katherine H D
authors.initials: KH
authors.lastname: Ballem
authors.forename: Vidhath
authors.initials: V
authors.lastname: Shetty
authors.forename: Nola
authors.initials: N
authors.lastname: Etkin
authors.forename: Brian O
authors.initials: BO
authors.lastname: Patrick
authors.forename: Kevin M
authors.initials: KM
authors.lastname: Smith