title: Synthesis of symmetrical multichromophoric Bodipy dyes and their facile transformation into energy transfer cassettes.
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.
authors.affiliation: UNAM-Institute of Materials Science and Nanotechnology, Bilkent University, 06800 Ankara, Turkey.
authors.forename: O Altan
authors.initials: OA
authors.lastname: Bozdemir
authors.forename: Yusuf
authors.initials: Y
authors.lastname: Cakmak
authors.forename: Fazli
authors.initials: F
authors.lastname: Sozmen
authors.forename: Tugba
authors.initials: T
authors.lastname: Ozdemir
authors.forename: Aleksander
authors.initials: A
authors.lastname: Siemiarczuk
authors.forename: Engin U
authors.initials: EU
authors.lastname: Akkaya