Indirect consequences of exciplex states on the phosphorescence lifetime of phenazine-based 1, 2, 3-triazole luminescent probes. Issue 5 (8th November 2016)

• Record Type: Journal Article
• Authors: Costa, Bárbara B. A.; Jardim, Guilherme A. M.; Santos, Paloma L.; Calado, Hállen D. R.; Monkman, Andrew P.; Dias, Fernando B.; da Silva Júnior, Eufrânio N.; Cury, Luiz A.
• Is Part Of: Physical chemistry chemical physics. Volume 19:Issue 5(2017)
• Page Start: 3473
• Page End: 3479
• Publication Date: 2016-11-08
• Subjects: Chemistry, Physical and theoretical -- Periodicals; 541.3
• DOI: 10.1039/c6cp06134f
• Languages: English
• ISSNs: 1463-9076

Abstract

Abstract : Exciplex formation, and delayed fluorescence and phosphorescence interplay interactions were investigated in phenazine derivative solutions at room temperature. 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 Cd 2+ 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 Cd 2+ ions to the phenazine molecules.