Radiation Research · 1970 · 12 citations · 17 references
Natural SciencesBiochemistryChemistryMagnetic Resonance BiophysicsMolecular PhysicsRedox BiochemistryElectron Spin Resonance SpectroscopyOxidation ReactionsOxidation-reduction ReactionsRadical ReactionsRedox ChemistrySulfur ChemistryDisulfide ChemistryFree Radical OxidationHydrogen Atom TransferOrganic Radical SpectroscopyRadical Reaction KineticsRadical-radical Reactions
Electron paramagnetic resonance (EPR) investigations were performed with a two-way and a three-way flow technique in order to follow the reaction of sulfhydryls and disulfides with various organic free radicals.The organic compounds were attacked with OH 01' NH 2 radicals produced in a Ti3+ + H 2 0 2 (NH 2 0H) system and subsequently reacted with RSH 01' RSSR compounds.Direct evidence of hydrogen transfer from RSH to both abstraction and addition radicals has been obtained.For disulfides a cation-radical mechanism has been advanced in order to explain the disappearance of free radicals when the latter react with such compounds.
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