Design of Novel Pyrene-Bodipy Dyads: Synthesis, Characterization, Optical Properties, and FRET Studies

摘要： A new series of dendronized bodipys containing pyrene units was synthesized and characterized. Their optical and photophysical properties were determined by absorption and ?uorescence spectroscopy. This series includes three different compounds. The ?rst one has an anisole group linked to the bodipy unit, which was used as the reference compound. In the second, the bodipy core is linked to a zero generation dendron with one pyrene unit. The third In this compound contains a ?rst generation Fréchet-type dendron bearing two pyrene units. work, the combination pyrene-bodipy was selected as the donor-acceptor pair for this ?uorescence resonance energy transfer (FRET) study. Doubtless, these two chromophores exhibit high quantum yields, high extinction coef?cients, and both their excitation and emission wavelengths are located in the visible region. This report presents a FRET study of a novel series of pyrene-bodipy dendritic molecules bearing ?exible spacers. We demonstrated via spectroscopic studies that FRET phenomena occur in these dyads.