Nature of Anti‐Dissipative High‐Energy Excited States in Quaterpyridine‐Bridged Ruthenium Complexes
High-energy excited states with slow rates for internal conversion to the lowest-energy excited state are prone to be intercepted before they dissipate energy to the medium. In a previous report, oligomeric Ru(II) photosensitizers bearing a bridging 2,2':5',3″:6″,2<sup>‴</sup>-quaterpyridine scaffold showed promising anti-dissipative behavior in photoinduced electron transfer reactivity. In here, a range of electron accepting and electron donating substituents were incorporated on the ancillary 2,2'-bipyridine ligands to modulate the excited-state dynamics. This allowed to unambiguously identify the nature of high-energy excited states and derive design guidelines for the achievement of anti-dissipative behavior in oligomeric Ru(II) polypyridines relevant for solar fuels production and photoredox catalysis.
Authors
- Ludovic Troian‐Gautier (ORCID: https://orcid.org/0000-0002-7690-1361)
- Agustina Cotic (ORCID: https://orcid.org/0000-0003-0127-1147)
- Simon De Kreijger
- Alejandro Cadranel (ORCID: https://orcid.org/0000-0002-6597-4397)
- Benjamin Elias (ORCID: https://orcid.org/0000-0001-5037-3313)
- Noémie Chantry
- Ю.Р. Селюминова
Institutions
- Friedrich-Alexander-Universität Erlangen-Nürnberg (DE)
- Universidad de Buenos Aires (AR)
- International Council on Mining and Metals (GB)
- Walloon Excellence in Lifesciences and Biotechnology (BE)
- Instituto de Química y Fisicoquímica Biológicas (AR)
- Fundación Ciencias Exactas y Naturales (AR)
- UCLouvain (BE)
Publication Details
- Journal
- Angewandte Chemie International Edition
- Published
- 2025-06-16
- DOI
- https://doi.org/10.1002/anie.202507738
- Citations
- 7
- Primary Topic
- Lanthanide and Transition Metal Complexes
- Type
- article
- Field-Weighted Citation Impact
- 3.62
Funders
- Université Catholique de Louvain
- Deutsche Forschungsgemeinschaft
- Fonds De La Recherche Scientifique - FNRS
- Consejo Nacional de Investigaciones Científicas y Técnicas
- Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture