Structural and reactivity insights into high-valent Co(iii)–(μ-peroxo)–Co(iv) and its electromer Co(iii)–(μ-superoxo)–Co(iii)

Abstract

Various metalloenzymes employ O₂ for oxidative reactions, which is crucial in catalysis and biological processes involving high-valent metal–oxygen species. This study introduces novel high-valent Co(III)–(μ-1,2-O₂)–Co(IV) and Co(III)–(μ-1,2-O₂˙⁻)–Co(III) complexes, stabilized by an electron-donating TPA* ligand. This study advances our understanding of Co–oxygen intermediates, which are key for water oxidation catalysis.