Spectroelectrochemistry of FeIII- and CoIII-mimochrome VI artificial enzymes immobilized on mesoporous ITO electrodes

R. Vitale; L. Lista; S. Lau-Truong; R. T. Tucker; M. J. Brett; B. Limoges; V. Pavone; A. Lombardi; V. Balland

doi:10.1039/C3CC48489K

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Spectroelectrochemistry of Fe^III- and Co^III-mimochrome VI artificial enzymes immobilized on mesoporous ITO electrodes†

R. Vitale,^a L. Lista,^a S. Lau-Truong,^b R. T. Tucker,^c M. J. Brett,^cd B. Limoges,^e V. Pavone,^a A. Lombardi*^a and V. Balland*^e

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* Corresponding authors

^a Department of Chemical Sciences, Complesso Universitario Monte S. Angelo, University of Naples “Federico II”, Via Cintia, 80126 Naples, Italy
E-mail: alombard@unina.it

^b ITODYS, UMR CNRS 7086, Université Paris Diderot, Sorbonne Paris Cité, 15, rue Jean-Antoine de Baïf, 75205 Paris Cedex 13, France

^c Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada T6G 2V4

^d NRC National Institute for Nanotechnology, Edmonton, Alberta, Canada T6G 2M9

^e Laboratoire d'Electrochimie Moléculaire, Université Paris Diderot, UMR CNRS 7591, 15, rue Jean-Antoine de Baïf, 75205 Paris Cedex 13, France
E-mail: veronique.balland@univ-paris-diderot.fr

Abstract

UV-visible absorption spectroelectrochemistry elucidated the different redox behaviours of Fe^III- and Co^III-mimochrome VI artificial enzymes, adsorbed on mesoporous conductive films of ITO. The reduction of the ferric complex was rapid and reversible, while the cobaltic complex exhibited irreversible processes probably related to multiple coordination states.

This article is part of the themed collection: Biological oxidation reactions: mechanisms and design of new catalysts

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DOI: https://doi.org/10.1039/C3CC48489K
Article type: Communication
Submitted: 06 Nov 2013
Accepted: 03 Dec 2013
First published: 03 Dec 2013

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Chem. Commun., 2014,50, 1894-1896

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Spectroelectrochemistry of Fe^III- and Co^III-mimochrome VI artificial enzymes immobilized on mesoporous ITO electrodes

R. Vitale, L. Lista, S. Lau-Truong, R. T. Tucker, M. J. Brett, B. Limoges, V. Pavone, A. Lombardi and V. Balland, Chem. Commun., 2014, 50, 1894 DOI: 10.1039/C3CC48489K

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