Synthesis, photophysical and electrochemical properties and theoretical studies on three novel indolo[3,2-b]carbazole derivatives containing benzothiazole units |
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Authors: | He-ping Shi Li-wen ShiJian-xin Dai Lei XuMei-hua Wang Xiao-huan WuLi Fang Chuan Dong Martin MF Choi |
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Institution: | a School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, PR China b Department of Chemistry, Hong Kong Baptist University, 224 Waterloo Road, Kowloon Tong, Hong Kong SAR, PR China |
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Abstract: | Three novel indolo3,2-b]carbazoles derivatives were successfully synthesized by condensation reaction and structurally characterized by elemental analysis, mass spectrometry and proton nuclear magnetic resonance spectroscopy methods, which belong to donor-π-acceptor systems comprising an indolo3,2-b]carbazole group as an electron donor and two benzothiazole rings as electron acceptors. The thermal, electrochemical and photophysical properties of the compounds were characterized by thermogravimetric analysis combined with electrochemistry, UV-vis absorption spectroscopy and fluorescence spectroscopy. On the other hand, the geometries, molecular orbitals, charge-injection and transport properties were determined by quantum chemical calculations. The results show that the compounds synthesized exhibit good thermal stability and high fluorescence quantum yields, indicating the potential application as optoelectronic materials. |
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Keywords: | Indolo[3 2-b]carbazoles Benzothiazole Donor-π-acceptor Photophysical properties |
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