Coordination of Hydrogen Peroxide with Late-Transition-Metal Sulfonamido Complexes

Adducts of hydrogen peroxide and transition metals have been implicated as intermediates in biological and industrial processes but have only recently been observed. Therefore, knowledge of how hydrogen peroxide interacts with transition metals is extremely limited. Herein, we report the synthesis of H₂O₂ complexes of cobalt, nickel, and copper supported by sulfonamido ligands with second-sphere hydrogen bonding. Binding constant and decay kinetics are reported for four new M(H₂O₂) adducts, providing a foundation for future studies in H₂O₂ coordination and oxidation catalysis.