An artificial photosynthetic system for photoaccumulation of two electrons on a fused dipyridophenazine (dppz)-pyridoquinolinone ligand.

Abstract : Increasing the efficiency of molecular artificial photosynthetic systems is mandatory for the construction of functional devices for solar fuel production. Decoupling the light-induced charge separation steps from the catalytic process is a promising strategy, which can be achieved thanks to the introduction of suitable electron relay units performing charge accumulation. We report here on a novel ruthenium tris-diimine complex able to temporarily store two electrons on a fused dipyridophenazine-pyridoquinolinone π-extended ligand upon visible-light irradiation in the presence of a sacrificial electron donor. Full characterization of this compound and of its singly and doubly reduced derivatives thanks to resonance Raman, EPR and (TD)DFT studies allowed us to localize the two electron-storage sites and to relate charge photoaccumulation with proton-coupled electron transfer processes.
Type de document :
Article dans une revue
Chemical Science , The Royal Society of Chemistry, 2018, 9 (17), pp.4152-4159. 〈10.1039/c7sc04348a〉
Liste complète des métadonnées

https://hal.archives-ouvertes.fr/hal-01798595
Contributeur : Nathalie Gon <>
Soumis le : mercredi 23 mai 2018 - 16:18:17
Dernière modification le : lundi 29 octobre 2018 - 15:44:04

Lien texte intégral

Identifiants

Collections

Citation

Jean-François Lefebvre, Julian Schindler, Philipp Traber, Ying Zhang, Stephan Kupfer, et al.. An artificial photosynthetic system for photoaccumulation of two electrons on a fused dipyridophenazine (dppz)-pyridoquinolinone ligand.. Chemical Science , The Royal Society of Chemistry, 2018, 9 (17), pp.4152-4159. 〈10.1039/c7sc04348a〉. 〈hal-01798595〉

Partager

Métriques

Consultations de la notice

76