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Issue 4, 2015
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Successive light-induced two electron transfers in a Ru–Fe supramolecular assembly: from Ru–Fe(ii)–OH2 to Ru–Fe(iv)–oxo

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Abstract

In the present work we describe the synthesis and study of a RuII–FeII chromophore–catalyst assembly designed to perform the light-induced activation of an iron bound water molecule and subsequent photo-driven oxidation of a substrate. Using a series of spectroscopic techniques, we demonstrate that excitation of the chromophore unit with 450 nm light, in the presence of a sacrificial electron acceptor, triggers a cascade of electron transfers leading to the formation of a high valent iron(IV)–oxo center from an iron(II)-bound water molecule. The activity of this catalytic center is illustrated by the oxidation of triphenyl phosphine.

Graphical abstract: Successive light-induced two electron transfers in a Ru–Fe supramolecular assembly: from Ru–Fe(ii)–OH2 to Ru–Fe(iv)–oxo

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Article information


Submitted
05 Jan 2015
Accepted
26 Jan 2015
First published
26 Jan 2015

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2015,6, 2323-2327
Article type
Edge Article
Author version available

Successive light-induced two electron transfers in a Ru–Fe supramolecular assembly: from Ru–Fe(II)–OH2 to Ru–Fe(IV)–oxo

C. Herrero, A. Quaranta, M. Sircoglou, K. Sénéchal-David, A. Baron, I. M. Marín, C. Buron, J. Baltaze, W. Leibl, A. Aukauloo and F. Banse, Chem. Sci., 2015, 6, 2323
DOI: 10.1039/C5SC00024F

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    [Original citation] - Published by The Royal Society of Chemistry.

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