| Texto completo | |
| Autor(es): |
Cordeiro Dantas, Willian Francisco
[1]
;
Duarte, Luis Gustavo Teixeira Alves
[1, 2]
;
Rodembusch, Fabiano Severo
[2]
;
Poppi, Ronei Jesus
[1]
;
Zambon Atvars, Teresa Dib
[1]
Número total de Autores: 5
|
| Afiliação do(s) autor(es): | [1] Univ Estadual Campinas, Inst Chem, Campinas - Brazil
[2] Univ Fed Rio Grande do Sul, Inst Quim, Grp Pesquisa Fotoquim Organ Aplicada, Ave Bento Goncalves 9500, BR-91501970 Porto Alegre, RS - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | METHODS AND APPLICATIONS IN FLUORESCENCE; v. 8, n. 4 OCT 2020. |
| Citações Web of Science: | 0 |
| Resumo | |
Multivariate Curve Resolution with Alternating Least Squares (MCR-ALS) was for the first time successfully used to evaluate an intricate photophysical behavior, where deprotonation on the electronic ground state (S-0), intra and intermolecular proton transfer processes (ESPT and ESIPT) on the electronic excited state (S-1) can simultaneously be presented. In this sense, the organic dye 2-(2 `-hydroxyphenyl)benzothiazole (HBT) was used as a proof-of-concept model, where MCR-ALS showed to be a powerful tool for discriminate chemical reactions that occur concomitantly on different potential energy surfaces, which include photochemical reactions. As a result, the chemometric method showed to be a straightforward approach for the determination of the acidic strengths of those equilibria were estimated as 8.61 and 1.11 to hydroxyl deprotonation on electronic ground and excited states, respectively. (AU) | |
| Processo FAPESP: | 13/16245-2 - Propriedades fotofísicas de filmes finos de polímeros conjugados |
| Beneficiário: | Teresa Dib Zambon Atvars |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |