Dioxygen–copper reactivity: a hydroperoxo–dicopper(II) complex
Abstract
A hydroperoxo–dicopper(II) complex (3) can be prepared by (a) direct protonation of a peroxo–dicopper(II) complex (2), (b) oxygenation of a ligand-protonated form of the dicopper(I) precursor of (2), and (c) reaction of hydrogen peroxide with a hydroxo-bridged dicopper(II) complex (5); (3) reacts quantitatively with triphenylphosphine or tetrahydrothiophene to give (5) and oxygenated products.