Oxyradical reactions: from bond‐dissociation energies to reduction potentials
Open Access
- 21 May 1990
- journal article
- research article
- Published by Wiley in FEBS Letters
- Vol. 264 (2), 165-167
- https://doi.org/10.1016/0014-5793(90)80239-f
Abstract
Destructive radical reactions involve alkykl, alkoxyl and alkylperoxyl radicals, as well as alkylhydroperoxides. From bond energies the following reduction potentials vs NHE at neutral pH are derived: Esuo'(RO./ROH) = 1.6 V, E o'(ROO./ROOH) = 1.0 V, E o'(ROOH/RO., H2;0) = 1.9 V, and the two‐electron reduction potential E o'(ROOH/ROH, H2O) = 1.7 V. Hydrogen abstraction from a bis‐allylic methylene group by alkoxyl and alkylperoxyl radicals is favourable with Gibbs energies of −23 and −9 , respectively. Similarly, alkoxyl radicals can oxidize alkylhydroperoxides, ΔGo' = −14 .This publication has 15 references indexed in Scilit:
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