Pre-steady state reactivity of 5,10,15,20-tetrakis(pentafluorophenyl)-21H,23H-porphyrin iron(III) chloride with hydrogen peroxide.
A stopped-flow study has shown that tetrakis(pentafluoro-phenyl)porphyrin iron(III) chloride reacts rapidly (<3 ms) with hydrogen peroxide to form a Fe(III)-H(2)O(2) complex where log K = 2.39. This subsequently undergoes rapid intramolecular conversion (k = 4.4 s(-1)) to an iron(IV) intermediate, which in turn reacts with hydrogen peroxide (k' = 54.3 M(-1) s(-1)) to reform the original Fe(III)-H(2)O(2) complex.
Department of Chemistry, University of Surrey, Guildford, UK. i.cunningham@surrey.ac.uk
Ian D
ID
Cunningham
Amal
A
Basaleh
Hanaa A
HA
Gazzaz
D002712:Chlorides / Q000737:chemistry; D005290:Ferric Compounds / Q000737:chemistry*; D006861:Hydrogen Peroxide / Q000737:chemistry*; D008665:Metalloporphyrins / Q000737:chemistry*; D005464:Fluorobenzenes; D005466:Fluorocarbons
D002712:Chlorides; D005290:Ferric Compounds; D006861:Hydrogen Peroxide; D008665:Metalloporphyrins; C575769:5,10,15,20-tetrakis(pentafluorophenyl)-21H,23H-porphyrin-Fe(III); D005464:Fluorobenzenes; D005466:Fluorocarbons