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    Quadrupolar benzobisthiazole-cored arylamines as highly efficient two-photon absorbing fluorophores

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    Date
    2014-12
    Author
    Hrobarik, P.
    Hrobarikova, V.
    Semak, V.
    Kasak, P.
    Rakovsky, E.
    Polyzos, I.
    Fakis, M.
    Persephonis, P.
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    Abstract
    A computer-aided design of novel D-?-A-?-D styrylamines containing five isomeric benzobisthiazole moieties as the electron-accepting core has revealed the linear centrosymmetric benzo[1,2-d:4,5-d?]bisthiazole as the most promising building block for engineering chromophores displaying high two-photon absorption (TPA) in the near-IR region, as also confirmed experimentally. The ease of synthesis of quadrupolar derivatives thereof, combined with extraordinarly high TPA action cross sections (?TPA?f > 1500 GM), makes these heteroaromatic systems particularly attractive as diagnostic agents in 3D fluorescence imaging.

    DOI/handle
    http://dx.doi.org/10.1021/ol503137p
    http://hdl.handle.net/10576/4080
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    • Research [‎129 ‎ items ]

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