OO Bond Activation in Heterobimetallic Peroxides: Synthesis of the Peroxide [LNi(μ,η²:η²‐O₂)K] and its Conversion into a Bis(μ‐Hydroxo) Nickel Zinc Complex

Abstract

O2 takes activation lessons: OO bond activation can be achieved depending on the nature of the heterometal M in [LNi(μ,η2:η2-O2)M] complexes. The reduction of the nickel(II) superoxide 1 with potassium affords the peroxide 2, which, upon replacement of the K+ ion in 2 by the non-redox-active L′Zn+ ion, leads to transient 3, which subsequently abstracts two solvent hydrogen atoms to give the heterobimetallic complex 4. L, L′=β-diketiminates.