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Title: Photophysics of 3,5-diphenoxy substituted BODIPY dyes in solution
Authors: Rohand, Taoufik ×
Lycoops, Jess
Smout, Steve
Braeken, Els
SLIWA, Michel
Van der Auweraer, Mark
Dehaen, Wim
De Borggraeve, Wim
Boens, Noël #
Issue Date: 9-Oct-2007
Publisher: Royal Society of Chemistry
Series Title: Photochemical & Photobiological Sciences vol:6 issue:10 pages:1061-1066
Abstract: We have prepared two fluorescent dyes derived from 8-(4-tolyl)-4,4-difluoro-4-bora-3a,4a-diaza-s-indacene with phenoxy and (o-bromo)phenoxy substituents at the 3,5-positions by a novel nucleophilic substitution reaction of the corresponding 3,5-dichloroBODIPY analogue. UV-vis absorption, steady-state and time-resolved fluorimetry have been used to investigate their solvent-dependent photophysical properties. The two BODIPY derivatives show narrow absorption and emission bands and display small Stokes shifts. The substituents at the 3,5-positions (phenoxy in and o-bromophenoxy in ) have a minor effect on the fluorescence quantum yields (0.16-0.40 for , 0.17-0.44 for ) and lifetimes (1.09-2.51 ns for , 1.11-2.78 ns for ). For both compounds, the fluorescence rate constant equals (1.5 +/- 0.1) x 10(8) s(-1).
URI: 
ISSN: 1474-905X
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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