title: A biomimetic phenol substituent effect on the reaction of a dimethylplatinum(ii) complex with oxygen: proton coupled electron transfer and multiple proton relay.
abstract: The complex [PtMe2({κ(2)-N,N-RN[double bond, length as m-dash]CH-2-C5H4N})] reacts with oxygen in acetone solution to give the platinum(iv) complex [Pt(OH)Me2{κ(3)-N,N,O-RNH-CH(2-C5H4N)(CH[double bond, length as m-dash]CMeO)}], when R = 2-C6H4OH, but not when R = Ph. It has been suggested that the phenol substituent plays two key biomimetic roles; firstly, in proton coupled electron transfer reactions in the activation of oxygen and hydroperoxide groups and, secondly, in proton relay from a methyl group of the coordinated acetone.
authors.affiliation: Department of Chemistry, University of Western Ontario, London, N6A 5B7, Canada. pudd@uwo.ca.
authors.forename: Mohamed E
authors.initials: ME
authors.lastname: Moustafa
authors.forename: Paul D
authors.initials: PD
authors.lastname: Boyle
authors.forename: Richard J
authors.initials: RJ
authors.lastname: Puddephatt
mesh_terms: D032701:Biomimetics; D008024:Ligands; D009944:Organoplatinum Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D010084:Oxidation-Reduction; D010100:Oxygen / Q000737:chemistry*; D010636:Phenols / Q000737:chemistry*; D066244:Proton Magnetic Resonance Spectroscopy
chemical_list: D008024:Ligands; D009944:Organoplatinum Compounds; D010636:Phenols; D010100:Oxygen