Fluorescent probe dependence of the solvation ...
Document type :
Article dans une revue scientifique: Article original
Permalink :
Title :
Fluorescent probe dependence of the solvation dynamics in ionic liquid BmimBF(4) and propylene carbonate mixtures: a time-resolved fluorescence and quantum chemistry study
Author(s) :
Smortsova, Y. [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Miannay, Francois-Alexandre [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Koverga, V. [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Dubois, Julien [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Kalugin, O. [Auteur]
Idrissi, Nacer [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Miannay, Francois-Alexandre [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Koverga, V. [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]
Dubois, Julien [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Kalugin, O. [Auteur]
Idrissi, Nacer [Auteur]
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement (LASIRE) - UMR 8516
Journal title :
Journal of Molecular Liquids
Abbreviated title :
J. Mol. Liq.
Volume number :
282
Pages :
39-50
Publication date :
2019-05-11
ISSN :
0167-7322
HAL domain(s) :
Chimie/Chimie théorique et/ou physique
English abstract : [en]
In this work, steady-state and time-resolved fluorescence experiments on solvation of C153, C102, 4-ANMP and PRODAN fluorescent probes in BmimBF4 and BmimBF4/PC mixtures with a molar fraction of ionic liquid equal to 0.65 ...
Show more >In this work, steady-state and time-resolved fluorescence experiments on solvation of C153, C102, 4-ANMP and PRODAN fluorescent probes in BmimBF4 and BmimBF4/PC mixtures with a molar fraction of ionic liquid equal to 0.65 and 0.85 are reported. Quantum Chemistry calculations were performed to complete the experimental data interpretation. All the four studied probes exhibit similar solvation dynamics, with their average solvation times following the trend 4-ANMP < C153 ≅ C102 < PRODAN. A specific interactions hypothesis was put forward to explain the slight divergence of 4-ANMP and PRODAN spectra shift. The C153 molecule, showing a big change in dipole moment (8.7 D) upon the photoexcitation, little geometry relaxation upon the excitation due to its rigid structure, small change in dipole moment orientation and relatively small hydrogen bonding ability is thus proved to be the most adequate for use in the study of the solvation dynamics in various environments, including ionic liquids and ionic liquid/molecular solvent mixtures.Show less >
Show more >In this work, steady-state and time-resolved fluorescence experiments on solvation of C153, C102, 4-ANMP and PRODAN fluorescent probes in BmimBF4 and BmimBF4/PC mixtures with a molar fraction of ionic liquid equal to 0.65 and 0.85 are reported. Quantum Chemistry calculations were performed to complete the experimental data interpretation. All the four studied probes exhibit similar solvation dynamics, with their average solvation times following the trend 4-ANMP < C153 ≅ C102 < PRODAN. A specific interactions hypothesis was put forward to explain the slight divergence of 4-ANMP and PRODAN spectra shift. The C153 molecule, showing a big change in dipole moment (8.7 D) upon the photoexcitation, little geometry relaxation upon the excitation due to its rigid structure, small change in dipole moment orientation and relatively small hydrogen bonding ability is thus proved to be the most adequate for use in the study of the solvation dynamics in various environments, including ionic liquids and ionic liquid/molecular solvent mixtures.Show less >
Language :
Anglais
Peer reviewed article :
Oui
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
Université de Lille
CNRS
CNRS
Collections :
Submission date :
2024-02-28T23:13:21Z
2024-03-11T11:57:26Z
2024-03-11T11:57:26Z