BEGIN:VCALENDAR VERSION:2.0 PRODID:-//132.216.98.100//NONSGML kigkonsult.se iCalcreator 2.20.4// BEGIN:VEVENT UID:20250811T183349EDT-5820DXBj8U@132.216.98.100 DTSTAMP:20250811T223349Z DESCRIPTION:The interplay of redox-active transition metal ions and pro-rad ical ligands in metalloenzyme sites has generated considerable interest. T he Cu(II)-phenoxyl radical form of galactose oxidase\, as well as the Fe(I V)=O porphyrin radical intermediate of P450 enzymes are principal examples . Both of these enzymatic systems have inspired efforts to develop small m olecule mimics capable of mild and selective oxidation chemistry. Recent d evelopments show that ligands serving as electron reservoirs offer opportu nities to expand catalysis\, especially by conferring to first-row transit ion metals a “noble metal-like” reactivity.[1] We have extensively investi gated the chemistry of a series of oxidized mono- and bis-phenoxide metal complexes\, which demonstrate that small variations of the ligand structur e affect the oxidation locus. Characterization of oxidized species by both experimental and theoretical methods has afforded significant information about the electronic structure of these ligand radical systems. Building on this work\, recent studies with a series of oxidized nitridomanganese(V ) salen complexes demonstrate that nitride activation is dictated by remot e ligand electronics.[2] We are currently investigating the reaction mecha nism and further applications of this chemistry. \n\n1.       P. J. Chirik and K. Wieghardt\, Science\, 2010\, 327\, 794.\n\n2.       R. M. Clarke a nd T. Storr\, J. Am. Chem. Soc. 2016\, 138\, 15299\n DTSTART:20171024T170000Z DTEND:20171024T183000Z LOCATION:OM 10\, Maass Chemistry Building\, CA\, QC\, Montreal\, H3A 0B8\, 801 rue Sherbrooke Ouest SUMMARY:Chemical Society Seminar: Dr. Tim Storr - Electronic Structure and Reactivity of Oxidized Metal Phenoxides URL:/chemistry/channels/event/chemical-society-seminar -dr-tim-storr-electronic-structure-and-reactivity-oxidized-metal-phenoxide s-278792 END:VEVENT END:VCALENDAR