Wonwoo Nam

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,...

Janus Reactivity of a Mononuclear Non‐Heme Iron(III)‐Peroxo Complex Toward Indole Oxidation

ABSTRACT Indole oxidation reaction is a pivotal process in organic chemistry, playing a crucial role in the synthesis of various natural products and pharmaceuticals. To‐date, indole oxidation is limited to heme enzymes and synthetic iron porphyrin compounds. Herein, we demonstra...

Beyond the Oxo‐Wall: Synthesis and Reactivity of a Six‐Coordinate Formally Co IV ‐Oxo Complex

ABSTRACT Despite their implication in a number of oxidation processes, there is a paucity of well‐characterized high‐valent cobalt‐oxo complexes. In this study, we present the first example of a six‐coordinate formally Co(IV)‐oxo complex, [Co(TQA)(O)(OH)] + ( 1 , TQA = tris(2‐qui...