Nature of Anti-Dissipative High-Energy Excited States in Quaterpyridine-Bridged Ruthenium Complexes

Chantry N, Cotic A, De Kreijger S, Di Forti R, Elias B, Troian-Gautier L, Cadranel A (2025)

Publication Type: Journal article

Publication year: 2025

Journal

Angewandte Chemie International Edition Wiley

DOI: 10.1002/anie.202507738

Abstract

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‴–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 with CRIS profile

Riccardo Di Forti Lehrstuhl für Physikalische Chemie I Alejandro Cadranel

Involved external institutions

Université Catholique de Louvain (UCL) BE Belgium (BE) Universidad de Buenos Aires (UBA) / University of Buenos Aires AR Argentina (AR)

How to cite

APA:

Chantry, N., Cotic, A., De Kreijger, S., Di Forti, R., Elias, B., Troian-Gautier, L., & Cadranel, A. (2025). Nature of Anti-Dissipative High-Energy Excited States in Quaterpyridine-Bridged Ruthenium Complexes. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202507738

MLA:

Chantry, Noémie, et al. "Nature of Anti-Dissipative High-Energy Excited States in Quaterpyridine-Bridged Ruthenium Complexes." Angewandte Chemie International Edition (2025).

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