Comparison of the reactivity of nonheme iron(IV)-oxo versus iron(IV)-imido complexes: which is the better oxidant?
Which is better? The first detailed comparison of the reactivity of nonheme iron(IV)-imido versus nonheme iron(IV)-oxo intermediates with substrates is presented. The iron(IV)-imido variant reacts with sulfides five times faster than iron(IV)-oxo, whereas the reverse trend is observed for hydrogen atom abstraction. These observed trends are analyzed and explained.
Department of Chemistry, Indian Institute of Technology Guwahati, Assam, 781039 (India).
Anil Kumar
AK
Vardhaman
Prasenjit
P
Barman
Suresh
S
Kumar
Chivukula V
CV
Sastri
Devesh
D
Kumar
Sam P
SP
de Visser
D002384:Catalysis; D056831:Coordination Complexes / Q000138:chemical synthesis / Q000737:chemistry*; D018360:Crystallography, X-Ray; D007094:Imides / Q000737:chemistry*; D007501:Iron / Q000737:chemistry*; D007700:Kinetics; D008968:Molecular Conformation; D016877:Oxidants / Q000737:chemistry*; D010084:Oxidation-Reduction; D013440:Sulfides / Q000737:chemistry; D013816:Thermodynamics; D014105:Tosyl Compounds / Q000737:chemistry
D056831:Coordination Complexes; D007094:Imides; D016877:Oxidants; D013440:Sulfides; D014105:Tosyl Compounds; C066317:ferryl iron; C093850:methylphenylsulfide; D007501:Iron
CH activation; enzyme models; imido ligands; iron; sulfoxidation