Journal
CHEMISTRY-A EUROPEAN JOURNAL
Volume 16, Issue 21, Pages 6346-6351Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200903449
Keywords
dyes/pigments; energy transfer; fluorescence spectroscopy; fluorophores; Sonogashira coupling
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Funding
- Turkish Academy of Sciences (TUBA)
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Multichromophoric boron-di-pyrromethene (Bodipy) dyes synthesized on phenylene-ethynylene platforms have been be converted to energy transfer cassettes in a one-step chemical transformation. Excitation energy transfer processes in these highly symmetrical derivatives were studied in detail, including time-resolved fluorescence spectroscopy techniques. Excitation spectra and the emission lifetimes suggest efficient energy transfer between the donor and acceptor chromophore. These novel energy transfer cassettes, while highlighting a short-cut approach to similar energy transfer systems, could be useful as large pseudo-Stokes shift multichromophoric dyes with potential applications in diverse applications.
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