Browsing by Subject "4,4 difluoro 4 bora 3a,4a diaza s indacene"

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    Phenylethynyl-BODIPY oligomers: bright dyes and fluorescent building blocks
    (2009) Cakmak, Y.; Akkaya, E. U.
    Boradiazaindacene dyes were converted into phenylethynyl-BODIPY oligomers via a cycle of reactions, notably including Sonogashira couplings. As expected, as the number, n, of repeating units increases, peak absorption and emission wavelengths are shifted to the red end of the visible spectrum, albeit with smaller increments as n increases. Decyl groups help to keep the solubility remarkably high, and in addition to being very bright red-emitting fluorophores, their rigid rod-like structures could allow their use as functional building blocks. © 2009 American Chemical Society.
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    Tetrastyryl-bodipy dyes: convenient synthesis and characterization of elusive near IR fluorophores
    (2009) Buyukcakir, O.; Bozdemir, O. A.; Kolemen, S.; Erbas, S.; Akkaya, E. U.
    1,3,5,7-Tetramethyl-Bodipy derivatives undergo Knoevenagel-type condensations with aromatic aldehydes to ultimately yield tetrastyryl-Bodipy derivatives. The resulting dyes absorb and emit strongly In the near IR. As the versatility of the Bodipy dyes are fully appreciated, these new tetrastyryl dyes are likely to be featured In a variety of functional supramolecular systems. © 2009 American Chemical Society.