Title: Synthesis and photophysical characterization of chalcogen substituted BODIPY dyes
Authors: Fron, Eduard
Coutino-Gonzalez, Eduardo
Pandey, Lesley
Sliwa, Michel
Van der Auweraer, Mark
De Schryver, Frans
Thomas, Joice
Dong, Zeyuan
Leen, Volker
Smet, Mario
Dehaen, Wim
Vosch, Tom # ×
Issue Date: 2009
Publisher: CNRS/Gauthier-Villars
Series Title: New Journal of Chemistry vol:33 issue:7 pages:1490-1496
Abstract: Synthetic details and stationary and time-resolved photophysical properties of five BODIPY derivatives containing chalcogen atoms are presented. The photophysical data are compared to those of a chlorine atom containing BODIPY, acting as a reference. A strong impact in the HOMO-LUMO transition energy is achieved via nucleophilic substitution with chalcogen based units. Going from oxygen to tellurium a bathochromic shift in both absorption and emission spectra from the green to the near infrared region was observed. By employing fluorescence single photon timing experiments in two solvents of different polarity, the excited state dynamics and their solvent dependence indicate the presence of a mechanism involving a photoinduced charge transfer that dramatically affects the optical radiative processes of these derivatives.
ISSN: 1144-0546
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
Polymer Chemistry and Materials
Molecular Design and Synthesis
× corresponding author
# (joint) last author

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