Shunichi Fukuzumi

A Negative Temperature Effect on the Reversible Conversion between Redox Tautomers of CoIII(OH) and CoIV(O) Complexes Bearing a Redox-Non-Innocent Tetraamido Macrocyclic Ligand

Abstract Elucidating highly reactive intermediates in catalytic reactions relies heavily on cryogenic trapping techniques, where intermediates observed in solution are generally assumed to remain unchanged upon flash-freezing at 77 K. Herein, we demonstrate a striking exception t...

A Nonheme μ-1,2-Peroxo Dicobalt(III) Complex Acting as a Key Intermediate for Selective Two-Electron/Two-Proton Catalytic Reduction of Dioxygen to Hydrogen Peroxide

Abstract The two-electron/two-proton reduction of O2 to H2O2 has attracted considerable attention recently, as H2O2 is both a valuable oxidant and a potential fuel for H2O2 fuel cells. While metalloporphyrins have been extensively studied as efficient catalysts for this reaction,...