Notes. The contribution of iron(II) reduction alongside proton-induced decomposition in the reactions of two µ-hydroxoy-µ-peroxo-dicobalt(III) complexes

Abstract

It is concluded that there is little or no Fe²⁺(10^–3 M) reduction of the µ-hydroxo-µ-peroxo-dicobalt(III) complexes [(en)₂Co(OH)(O₂)Co(en)₂]³⁺ and [(trien)Co(OH)(O₂) Co(trien)]³⁺ and that the reaction observed, [H⁺]= 0.01 and 0.10 M, is accounted for by H⁺-induced hydroxo-bridge cleavage leading to mononuclear products (en = ethylenediamine, trien = triethylenetetra-amine). Contrary to a previous report µ-peroxo-complexes remain less active than H₂O₂ with Fe²⁺ as reductant.