Abstract
Abstract A series of N -base appended corroles and their manganese complexes were synthesized and their binding constants with three different nitrogenous ligands, triethylamine, N -methylimidazole and pyridine, were evaluated by spectroscopy. Kinetic studies indicated that the presence of appended N -donor ligands may cause a significant enhancement of the rate of oxygen atom transfers (OAT) from (oxo)manganese(V) corrole to alkene, and the stronger axial ligand binding has impact on the rate of the oxidation reaction. Turnover frequency (TOF) for the catalytic oxidation of alkenes by appended manganese corroles varies with the following ligand order: acetamido N -methylimidazole gave the best enhancement on the yields of total oxidation products among the investigated nitrogenous ligands.
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