Indirect consequences of exciplex states on the phosphorescence lifetime of phenazine-based 1,2,3-triazole luminescent probes

Costa, B. B. A.; Jardim, G. A. M.; Santos, P. L.; Calado, H. D. R.; Monkman, A. P.; Dias, F. B.; da Silva Júnior, E. N.; Cury, L.

Abstract

The optical properties of phenazine derivative probe solutions involving intersystem crossing from singlet to triplet states were investigated by time resolved spectroscopy. The room temperature phosphorescence emission presented different time responses when Cd2+ ions were bound to the probe chemical structure. The complex exciplex formation observed to occur in this case was not directly responsible for the change in the phosphorescence lifetime. This was more influenced by the new molecular conformation and modified spin–orbit coupling imposed by the binding of the Cd2+ ions to the phenazine molecules.

Citation

Costa, B. B. A., Jardim, G. A. M., Santos, P. L., Calado, H. D. R., Monkman, A. P., Dias, F. B., da Silva Júnior, E. N., & Cury, L. (2017). Indirect consequences of exciplex states on the phosphorescence lifetime of phenazine-based 1,2,3-triazole luminescent probes. Physical Chemistry Chemical Physics, 19(5), 3473-3479. https://doi.org/10.1039/c6cp06134f

• Journal Article Type: Article
• Acceptance Date: Oct 20, 2016
• Online Publication Date: Oct 21, 2016
• Publication Date: Feb 7, 2017
• Deposit Date: Nov 30, 2016
• Publicly Available Date: Oct 20, 2017
• Journal: Physical Chemistry Chemical Physics
• Print ISSN: 1463-9076
• Electronic ISSN: 1463-9084
• Publisher: Royal Society of Chemistry
• Peer Reviewed: Peer Reviewed
• Volume: 19
• Issue: 5
• Pages: 3473-3479
• DOI: https://doi.org/10.1039/c6cp06134f
• Public URL: https://durham-repository.worktribe.com/output/1368956