Selective four electron reduction of O2 by an iron porphyrin electrocatalyst under fast and slow electron fluxes

Subhra Samanta; Kushal Sengupta; Kaustuv Mittra; Sabyasachi Bandyopadhyay; Abhishek Dey

doi:10.1039/C2CC32832A

Selective four electron reduction of O₂ by an iron porphyrin electrocatalyst under fast and slow electron fluxes

Subhra Samanta,^a Kushal Sengupta,^a Kaustuv Mittra,^a Sabyasachi Bandyopadhyay^a and Abhishek Dey*^a

* Corresponding authors

^a Department of Chemistry, Indian Association for the Cultivation of Science, India
E-mail: icad@iacs.res.in
Fax: +91-33-2473 2805
Tel: +91-33-2473 4971

Abstract

An iron porphyrin catalyst with four electron donor groups is reported. The porphyrin ligand bears a distal hydrogen bonding pocket which inverts the normal axial ligand binding selectivity exhibited by porphyrins bearing sterically crowded distal structures. This catalyst specifically reduces O₂ by four electrons under both fast and slow electron fluxes at pH 7.

Supplementary files

Publication details

The article was received on 20 Apr 2012, accepted on 20 May 2012 and first published on 22 May 2012

Article type: Communication

DOI: 10.1039/C2CC32832A

Citation: Chem. Commun., 2012,48, 7631-7633

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Selective four electron reduction of O₂ by an iron porphyrin electrocatalyst under fast and slow electron fluxes

S. Samanta, K. Sengupta, K. Mittra, S. Bandyopadhyay and A. Dey, Chem. Commun., 2012, 48, 7631
DOI: 10.1039/C2CC32832A
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Chemical Communications

Selective four electron reduction of O₂ by an iron porphyrin electrocatalyst under fast and slow electron fluxes

Abstract

Supplementary files

Publication details

Selective four electron reduction of O₂ by an iron porphyrin electrocatalyst under fast and slow electron fluxes

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