Abstract
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.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
