Novel biferrocenyl complexes of s- and as-dihydroindacenes have been prepared and the charge transfer properties of their mono- and dicationic derivatives, selectively generated by one-electron and two-electron oxidation, have been investigated. Mixed-valence cations are generated by chemical oxidation using acetylferricinium as an oxidant agent and monitored in the visible, IR, and near-IR regions. The IT bands in the near-IR spectra are rationalized in the framework of Marcus Hush theory. The rigid and planar indacene platform bonded to two terminal redox groups displays a redox chemistry that can be switched from single two-electron transfers to two successive one-electron transfers by changing the supporting electrolyte from nBu(4)NPF(6) to nBu(4)NB(C(6)F(5))(4).

Single Two-Electron Transfers and Successive One-Electron Transfers in Biferrocenyl-Indacene Isomers

DONOLI, ALESSANDRO;BISELLO, ANNALISA;CARDENA, ROBERTA;CECCON, ALBERTO;SANTI, SAVERIO
2011

Abstract

Novel biferrocenyl complexes of s- and as-dihydroindacenes have been prepared and the charge transfer properties of their mono- and dicationic derivatives, selectively generated by one-electron and two-electron oxidation, have been investigated. Mixed-valence cations are generated by chemical oxidation using acetylferricinium as an oxidant agent and monitored in the visible, IR, and near-IR regions. The IT bands in the near-IR spectra are rationalized in the framework of Marcus Hush theory. The rigid and planar indacene platform bonded to two terminal redox groups displays a redox chemistry that can be switched from single two-electron transfers to two successive one-electron transfers by changing the supporting electrolyte from nBu(4)NPF(6) to nBu(4)NB(C(6)F(5))(4).
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11577/123587
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