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Molecular Electrochemistry Hot Paper Probing the Activity of Iron Peroxo Porphyrin Intermediates in the Reaction Layer during the Electrochemical Reductive Activation of O2

Abstract : Herein we report the first example of using scanning electrochemical microscopy (SECM) to quantitatively analyze O2 reductive activation in organic media catalyzed by three different Fe porphyrins. For each porphyrin, SECM can provide in one single experiment the redox potential of various intermediates, the association constant of Fe II with O2 , and the pK a of the Fe III (OOH-)/ Fe III (OO2-) couple. The results obtained can contribute to a further understanding of the parameters controlling the catalytic efficiency of the Fe porphyrin towards O2 activation and reduction.
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https://hal-univ-paris.archives-ouvertes.fr/hal-02951626
Contributor : Claire Fave <>
Submitted on : Monday, September 28, 2020 - 6:03:57 PM
Last modification on : Monday, October 5, 2020 - 5:25:28 PM

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  • HAL Id : hal-02951626, version 1

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Jean-Marc Noel, Nikolaos Kostopoulos, Célia Achaibou, Claire Fave, Elodie Anxolabèhère-Mallart, et al.. Molecular Electrochemistry Hot Paper Probing the Activity of Iron Peroxo Porphyrin Intermediates in the Reaction Layer during the Electrochemical Reductive Activation of O2. Angewandte Chemie (English Edition), John Wiley & Sons, 2020, 59 (38), pp.16376-16380. ⟨hal-02951626⟩

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