Title: Influence of the N-substituent on the photophysical properties of oxacarbocyanines in solution
Authors: Pevenage, D ×
Corens, D
Dehaen, Wim
Van der Auweraer, Mark
De Schryver, Frans #
Issue Date: Jan-1997
Series Title: Bulletin des Sociétés Chimiques Belges vol:106 issue:9-10 pages:565-572
Abstract: The influence of the rotational volume and redox properties of the N-substituents on the fluorescence spectra and decays of oxacarbocyanine dyes were investigated as function of the solvent polarity and/or polarisability. While alkyl and alkylbenzene side chains give rise to one-exponential fluorescence decay, the presence of a butylnaphthyl substituent induces a bi-exponential fluorescence decay in solvents with low polarisability and/or polarity. This was attributed to a conformation where the naphthyl moieties form a ground state dimer. With alkylpyrenyl substituents the fluorescence decay becomes bi-exponential due to the occurrence of a reversible intramolecular electron transfer.
ISSN: 0037-9646
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Design and Synthesis
Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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