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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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Publication details

The article was received on 05 Jan 2015, accepted on 26 Jan 2015 and first published on 26 Jan 2015


Article type: Edge Article
DOI: 10.1039/C5SC00024F
Citation: Chem. Sci., 2015,6, 2323-2327
  • Open access: Creative Commons BY-NC license
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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

    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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