Synthesis of Symmetrical Multichromophoric Bodipy Dyes and Their Facile Transformation into Energy Transfer Cassettes |
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| Authors: | O?Altan Bozdemir Dr Yusuf Cakmak Fazli Sozmen Tugba Ozdemir Aleksander Siemiarczuk Dr Engin?U Akkaya Prof?Dr |
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| Institution: | 1. UNAM‐Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara (Turkey), Fax: (+90)?312‐266‐4068;2. Department of Chemistry, Faculty of Arts and Sciences, Akdeniz University, 07058 Antalya (Turkey);3. PTI Fast Kinetics Laboratory, 347 Consortium Road, N6E 2S8, London, ON (Canada);4. Department of Chemistry, Bilkent University, 06800 Ankara (Turkey) |
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| Abstract: | Multichromophoric boron‐dipyrromethene (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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| Keywords: | dyes/pigments energy transfer fluorescence spectroscopy fluorophores Sonogashira coupling |
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