Reversible (de)protonation-induced valence inversion in mixed-valent diiron(II,III) complexes. - BIG - Chimie et Biologie des Métaux (CBM) Accéder directement au contenu
Article Dans Une Revue Inorganic Chemistry Année : 2011

Reversible (de)protonation-induced valence inversion in mixed-valent diiron(II,III) complexes.

Résumé

The coupling of electron and proton transfers is currently under intense scrutiny. This Communication reports a new kind of proton-coupled electron transfer within a homodinuclear first-row transition-metal complex. The triply-bridged complex [Fe(III)(μ-OPh)(μ(2)-mpdp)Fe(II)(NH(2)Bn)] (1; mpdp(2-) = m-phenylenedipropionate) bearing a terminal aminobenzyl ligand can be reversibly deprotonated to the anilinate complex 2 whose core [Fe(II)(μ-OPh)(μ(2)-mpdp)Fe(III)(NHBn)] features an inversion of the iron valences. This observation is supported by a combination of UV-visible, (1)H NMR, and Mössbauer spectroscopic studies.
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Dates et versions

hal-01069688 , version 1 (29-09-2014)

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Eric Gouré, Grégory Thiabaud, Michaël Carboni, Nathalie Gon, Patrick Dubourdeaux, et al.. Reversible (de)protonation-induced valence inversion in mixed-valent diiron(II,III) complexes.. Inorganic Chemistry, 2011, 50 (14), pp.6408-10. ⟨10.1021/ic2007414⟩. ⟨hal-01069688⟩
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