Abstract
The mechanism of the reaction of (ethylenediamine)(diethylenetriamine)cobalt(II) complexes with dioxygen to give the mononuclear cobalt(III) compound has been investigated by using /sup 59/Co NMR. The use of this method enables the concentration of the initially formed peroxo compounds and of the mononuclear cobalt(III) complexes to be monitored concurrently. It is concluded that the peroxo compounds are intermediates in the formation of the mononuclear cobalt(III) complex. The suggested mechanism involves reduction of the peroxo complex by cobalt(II). This reaction proceeds significantly faster for one isomer of the peroxo complex than for the other. 12 references, 3 figures.
Published Version
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