Abstract
Two-electron reduction of dioxygen with an NADH model compound, 10-methylacridan (AcrH2), occurs efficiently in the presence of metalloporphyrins and perchloric acid in acetonitrile at 298 K. Overall four-electron reduction of dioxygen by AcrH2 has also been made possible by adding iodide ion to the metalloporphyrin-catalyzed system. The catalytic mechanisms are discussed on the basis of detailed kinetics and the kinetic isotope effects for the overall CoTPP+-catalyzed reduction of dioxygen by AcrH2 as well as for each half catalytic cycle, the oxidation of AcrH2 by CoTPP+ and the reduction of dioxygen by CoTPP in the presence of HCIO4.
Original language | English |
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Pages (from-to) | 653-659 |
Number of pages | 7 |
Journal | Inorganic Chemistry |
Volume | 29 |
Issue number | 4 |
DOIs | |
State | Published - 1990 |