Quadrupolar Benzobisthiazole-Cored Arylamines as Highly Efficient Two-Photon Absorbing Fluorophores
A computer-aided design of novel D-pi-A-pi-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 (delta(TPA)Phi(f) > 1500 GM), makes these heteroaromatic systems particularly attractive as diagnostic agents in 3D fluorescence imaging.
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Hrobarik, P., Hrobarikova, V., Semak, V., Kasak, P., Rakovsky, E., Polyzos, I., Fakis, M., & Persephonie, P. (2014). Quadrupolar Benzobisthiazole-Cored Arylamines as Highly Efficient Two-Photon Absorbing Fluorophores. Organic Letters, 16(24), 6358–6361. https://doi.org/10.1021/ol503137p
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WOS:000346759900024
2014
16
24
6358
6361
REVIEWED
EPFL