L. G. Matvienko

Reactivity of the Peroxo Complexes of Copper(II) Hydroxide

In the interaction with H2O2 in an alkaline medium, Cu(OH)2 forms terminal Cu–OOH and bridging peroxo complexes with the μ-1,1 and μ-η2:η2 structures. It was found that the terminal peroxide is active in the reactions of H2O2 decomposition, diphenol oxidation, and nitrile conversion into acid amides. The promoting effect of ammonia on these reactions was found. A possible mechanism is discussed.

The role of peroxo complexes in the catalytic decomposition of H2O2 in the presence of Cu(II) hydroxides

The catalytic decomposition of hydrogen peroxide is studied in the presence of colloidal and silicagel-supported Cu(OH)2. Copper peroxo complexes with different activities were identified. The reaction is molecular without radical formation. The mechanisms of H2O2 decomposition are discussed.

Iron Hydroxides—New Catalysts for Oxidation Reactions in Aqueous Solutions

The catalytic decomposition of H2O2 in the presence of SiO2-supported amorphous and colloidal FeO(OH) is studied. An inactive Fe(IV) compound and a Fe(III) peroxo complex are found in the hydroxide composition. Possible mechanisms are discussed for H2O2 decomposition involving no free radicals. It is shown that lower hydrocarbons are oxidized in the systems, and their presence changes both the kinetics of H2O2 decomposition and the behavior of Fe(IV) and the peroxo complex.