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Intramolecular Relaxation Dynamics Mediated by Solvent–Solute Interactions of Substituted Fluorene Derivatives. Solute Structural Dependence
- Source :
- J Phys Chem B
- Publication Year :
- 2021
-
Abstract
- Several fluorene derivatives exhibit excited-state reactivity and relaxation dynamics that remain to be understood fully. We report here the spectral relaxation dynamics of two fluorene derivatives to evaluate the role of structural modification in the intramolecular relaxation dynamics and intermolecular interactions that characterize this family of chromophores. We have examined the time-resolved spectral relaxation dynamics of two compounds, NCy-FR0 and MK-FR0, in protic and aprotic solvents using steady-state and time-resolved emission spectroscopy and quantum chemical computations. Both compounds exhibit spectral relaxation characteristics similar to those seen in FR0, indicating that hydrogen bonding interactions between the chromophore and solvent protons play a significant role in determining the relaxation pathways available to three excited electronic states.
- Subjects :
- Quantitative Biology::Biomolecules
Fluorenes
Hydrogen bond
Intermolecular force
Hydrogen Bonding
Chromophore
Fluorene
Article
Surfaces, Coatings and Films
Solvent
Solutions
chemistry.chemical_compound
Spectrometry, Fluorescence
chemistry
Chemical physics
Intramolecular force
Materials Chemistry
Solvents
Relaxation (physics)
Reactivity (chemistry)
Physics::Chemical Physics
Physical and Theoretical Chemistry
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- J Phys Chem B
- Accession number :
- edsair.doi.dedup.....c2862cc4945374e595a25d12b097eb0e