The mechanism of oxidation inhibition by metal complexes 2. The effect of substituents in the schiff-base imine component on the antioxidant properties of copper salicylaldiiminates
The copper bis(salicylaldiiminate)s are involved in repeated chain rupture acts in the course of the oxidation of cyclohexylamine by α-aminoperoxide radicals.
Measured by the initiated oxidation method, the rate constants for one-electron oxidation and reduction of α-aminoperoxide radicals by Cu(I) and Cu(II) complexes diminish with an increase in the electron-donor activity of the substituent in the imine component of the coordinated Schiff base.
Measured in this same way, the rate constant for chain rupture in the p,p′-substituted diphenylamines increases with an increase in the electron-donor activity of the substituent.
KeywordsOxidation Copper Metal Complex Schiff Base Schiff
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