title: Concerted reductive coupling of an alkyl chloride at Pt(IV).
abstract: Oxidation of a doubly cyclometallated platinum(II) complex results in two isomeric platinum(IV) complexes. Whereas the trans isomer is robust, being manipulable in air at room temperature, the cis isomer decomposes at -20 °C and above. Reductive coupling of an alkyl chloride at the cis isomer gives a new species which can be reoxidised. The independence of this coupling on additional halide rules out the reverse of an S(N)2 reaction, leaving a concerted process as the only sensible reaction pathway.
authors.affiliation: Department of Chemistry, University of Warwick, Coventry, UK CV4 7AL.
authors.forename: Sarah H
authors.initials: SH
authors.lastname: Crosby
authors.forename: Helen R
authors.initials: HR
authors.lastname: Thomas
authors.forename: Guy J
authors.initials: GJ
authors.lastname: Clarkson
authors.forename: Jonathan P
authors.initials: JP
authors.lastname: Rourke