Charge delocalization vs localization in carbon-rich iron mixed-valence complexes: A subtle interplay between the carbon spacer and the (dppe)Cp*Fe organometallic electrophore - Université de Rennes Accéder directement au contenu
Article Dans Une Revue Coordination Chemistry Reviews Année : 2013

Charge delocalization vs localization in carbon-rich iron mixed-valence complexes: A subtle interplay between the carbon spacer and the (dppe)Cp*Fe organometallic electrophore

Résumé

In this review, the electronic and structural properties of different organometallic wires containing the (dppe)Cp*Fe organometallic electrophore are thoroughly discussed. Results obtained from X-ray crystallography, electrochemistry, IR, NIR, NMR, EPR and 57Fe Mössbauer spectroscopy measurements, as well as theoretical calculations serve to illustrate how electron-transfer in the mono-oxidized mixed-valence species and magnetic coupling in the di-oxidized species can be mediated by different conjugated and non-conjugated carbon linkers. Electron-transfer reactions in the former are generally described by two-state potential energy curves of the Marcus-Hush type. We will see that this model does not always apply, emphasizing the non-innocent role of the carbon-rich bridge in some cases.

Dates et versions

hal-00840050 , version 1 (01-07-2013)

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Jean-François Halet, Claude Lapinte. Charge delocalization vs localization in carbon-rich iron mixed-valence complexes: A subtle interplay between the carbon spacer and the (dppe)Cp*Fe organometallic electrophore. Coordination Chemistry Reviews, 2013, 257 (9-10), pp.1584-1613. ⟨10.1016/j.ccr.2012.09.007⟩. ⟨hal-00840050⟩
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