First electrochemical evidence of existence of an oxomanganese(V) porphyrin intermediate in the reaction of manganese(III) porphyrin and hydrogen peroxide as a model of enzyme mimetics

作者：Albin V; Bedioui F^*

来源：Electrochemistry Communications, 2003, 5(2): 129-132.

DOI：10.1016/S1388-2481(03)00004-3

• oxomanganese porphyrin
• enzyme mimetics
• voltammetry
• hydrogen peroxide

We report in this study on the first electrochemical evidence of existence of an oxomanganese(V) porphyrin complex, formed upon the reaction of the manganese meso-tetrakis-(2,3,5,6-tetrafluoro-N,N,N-trimethyl-4-aniliniumyl) porphyrin (noted Mn(TF(4)TMPA) with hydrogen peroxide in 50 mM borate buffer aqueous solution (pH 10.5) at 0 degreesC. The obtained results bring a clear insight into the previously reported and suggested formation of such an intermediate during the electroassisted reaction of manganese porphyrins or Schiff bases and molecular oxygen in various conditions, as enzyme mimetic.

• 出版日期2003-2