Two-Photon Excited Fluorescent 3,3’-Diamino-5,5’-Diboryl-2,2’-Bithienyls Featuring a Quadrupolar Structure |
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| Authors: | Xing-Yu Chen Prof Dr Zhi-Qiang Liu Prof Dr Cui-Hua Zhao |
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| Institution: | 1. School of Chemistry and Chemical Engineering, Shandong University, Shanda Nanlu 27, Jinan, 250100 P. R. China;2. State Key Laboratory of Crystal Materials, Shandong University, Shanda Nanlu 27, Jinan, 250100 P. R. China |
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| Abstract: | The quest for fluorophores exhibiting large two-photon absorption cross sections and high fluorescence efficiency is an important topic. Two 2,2’-bithienyl derivatives are disclosed which contain two N,N-disubstituted amino and two dimesitylboryl groups at 3,3’- and 5,5’-positions, respectively. Despite the great steric effect of amino groups, the bithienyl skeleton still adopts a coplanar geometry. Herein, they are characterized by a quadrupolar structure and display good fluorescence efficiency and large two-photon absorption cross sections up to 473 GM. |
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| Keywords: | 3 3’-diamino-5 5’-diboryl-2 2’-bithienyl high cross section F quadrupolar triarylborane two-photon absorption |
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