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Copper peroxide

Chemical compound - an oxide of copper with formula CuO2 From Wikipedia, the free encyclopedia

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Copper peroxide is a hypothetical inorganic compound with the chemical formula CuO2. The 1:2 ratio of copper and oxygen would be consistent with copper in its common +2 oxidation state and a peroxide group. Although samples of this composition have not been isolated, CuO2 has attracted interest from computational perspective. One highly cited analysis concludes that gaseous CuO2 is a superoxide, with copper in a +1 oxidation state: Cu+O2.[1]

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History

Species claimed to be "copper peroxide" have been claimed, e.g., by the reaction of cold solutions of Schweizer's reagent—a source of copper(II)—and hydrogen peroxide.[2] The Schweizer's reagent used must not contain excess ammonia.[2]

It was once claimed to result from the very slow reaction of finely divided cupric oxide with cold hydrogen peroxide.[3]

Several molecular copper peroxide complexes have been reported, but these species always feature supporting organic ligands.[4]

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References

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