ChemInform Abstract: Synthesis and Dioxygen Reactivity of Dinuclear Copper-Phenolate and Copper-Phenol Complexes with Pyrazole and Pyridine Donors

New hybrid ligands containing pyrazole and pyridine have been prepared; and the reaction chemistry of their copper(I) derivatives has been studied. These dinucleating ligands provide three nitrogen donors to each metal ion, and a phenol or phenolate group to bridge between the metals. The reaction of the different dicopper(I) species with dioxygen follows patterns established previously for analogous pyridyl ligands; and peroxo and hydroperoxo adducts can be generated at low temperature