Photoinduced Electron Transfer in Clicked Ferrocene‐BODIPY‐Fullerene Conjugates - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Helvetica Chimica Acta Année : 2023

Photoinduced Electron Transfer in Clicked Ferrocene‐BODIPY‐Fullerene Conjugates

Jad Rabah
Hélène Fensterbank
Karen Wright
Anne Vallée
Thomas Pino
Emmanuel Allard

Résumé

Abstract Ferrocene‐BODIPY (Fc‐BDP) conjugates in which one or two ferrocene entities are linked to the β‐positions of the BODIPY core by an ethynyl bridge have been developed. These derivatives were easily and efficiently grafted onto a dual‐clickable fullerene platform using CuAAC reactions, leading to a clickable Fc‐BDP‐C 60 triad and a clickable [Fc] 2 ‐BDP‐C 60 tetrad which can be used for further derivatization with complex structures. Due to the extended π‐conjugation and the presence of an intramolecular charge transfer band from Fc to BDP, all these conjugates display a broad absorption in the visible region, which is bathochromically shifted when two Fc are appended to the BDP core. Ultrafast multistep electron transfers leading to charge stabilization were demonstrated in the Fc‐BDP‐C 60 triad and [Fc] 2 ‐BDP‐C 60 tetrad by femtosecond transient absorption studies.

Domaines

Chimie
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vendredi 11 octobre 2024
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Dates et versions

hal-04125045 , version 1 (11-10-2023)

Identifiants

Citer

Jad Rabah, Anam Fatima, Hélène Fensterbank, Karen Wright, Anne Vallée, et al.. Photoinduced Electron Transfer in Clicked Ferrocene‐BODIPY‐Fullerene Conjugates. Helvetica Chimica Acta, 2023, ⟨10.1002/hlca.202300039⟩. ⟨hal-04125045⟩
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