One-electron reduction of ferriporphyrins and reactions of ferric and ferrous porphyrins with a halothane-derived radical
D Brault, P Neta
Index: Brault, D.; Neta, P. Journal of Physical Chemistry, 1982 , vol. 86, # 17 p. 3405 - 3410
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Citation Number: 30
Abstract
The reduction of ferrideuteroporphyrin by a-hydroxyisopropyl radicals is investigated in acidic 2-propanol and acidic 2-propanol-water mixtures by means of steady-state and pulse radiolysis. The rate constant of the reaction is much higher (k N 1.3 X log M-'8-l) than that reported for neutral solutions emphasizing the effect of the positive charge carried by the ferric porphyrin in acidic solutions (due to protonation of the alkoxide ligand). Competition ...
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