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.


Published in:
Organic Letters, 16, 24, 6358-6361
Year:
2014
Publisher:
Washington, Amer Chemical Soc
ISSN:
1523-7060
Laboratories:




 Record created 2015-04-13, last modified 2018-03-17


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