Drastic Enhancement of Catalytic Activity via Post-oxidation of a Porous MnII Triazolate Framework

Mn-III is a powerful active site for catalytic oxidation of alkyl aromatics, but it can be only stabilized by macrocyclic chelating ligands such porphyrinates. Herein, by using benzobistriazolate as a rigid bridging ligand, a porous Mn-II azolate framework with a nitrogen-rich coordinated environment similar to that of metalloporphyrins was synthesized, in which the Mn-II ions can be post-oxidized to Mn-III to achieve drastic increase of catalytic (aerobic) oxidation performance.