A Computational-Experimental Approach to Unravel the Excited State Landscape in Heavy-Atom Free BODIPY-Related Dyes.
Molecules
; 27(15)2022 Jul 22.
Article
em En
| MEDLINE
| ID: mdl-35897859
ABSTRACT
We performed a time-gated laser-spectroscopy study in a set of heavy-atom free single BODIPY fluorophores, supported by accurate, excited-state computational simulations of the key low-lying excited states in these chromophores. Despite the strong fluorescence of these emitters, we observed a significant fraction of time-delayed (microseconds scale) emission associated with processes that involved passage through the triplet manifold. The accuracy of the predictions of the energy arrangement and electronic nature of the low-lying singlet and triplet excited states meant that an unambiguous assignment of the main deactivation pathways, including thermally activated delayed fluorescence and/or room temperature phosphorescence, was possible. The observation of triplet state formation indicates a breakthrough in the "classic" interpretation of the photophysical properties of the renowned BODIPY and its derivatives.
Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Compostos de Boro
/
Corantes Fluorescentes
Idioma:
En
Ano de publicação:
2022
Tipo de documento:
Article