Synthesis,Single Crystal,and Physical Properties of Asymmetrical Thiophene/Selenophene‐Fused Twistacenes |
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| Authors: | Bo Lv Xingxing Shen Prof. Jinchong Xiao Jingdan Duan Prof. Xuefei Wang Prof. Yuanping Yi |
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| Affiliation: | 1. College of Chemistry and Environmental Science, Key Laboratory of Chemical Biology of Hebei Province, Hebei University, Baoding, P. R. China;2. Key Laboratory of Organic Solids, Beijing National Laboratory for Molecular Science (BNLMS), Institute of Chemistry, Chinese Academy of Sciences, Beijing, P. R. China;3. School of Chemistry and Chemical Engineering of, University of Chinese Academy of Sciences, Beijing, P. R. China |
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| Abstract: | Two asymmetrical twistacenes, PyPT and PyPS , have been synthesized and characterized. Single crystal X‐ray analyses show that both of them have twisted structures with a torsion angle of 26.65° for PyPT and 26.59° for PyPS measured between plane C5‐C23‐C25 and plane C13‐C15‐C26. The thiophene/selenophene‐fused acenes emit blue fluorescence with quantum yields of 0.39 for PyPT and 0.04 for PyPS in organic solvents, whereas the all‐carbon molecule HBP emits green fluorescence. Meanwhile, PyPT and PyPS show a similar reversible oxide procedure with the onset potentials of 0.73 and 0.72 V, respectively. In addition, PyPT and PyPS can self‐assemble to form nanoparticles in a mixture of THF/H2O through re‐precipitation method. |
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| Keywords: | heteroacenes optical property self-assembly synthesis twisted structures |
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