Color-tunable and Highly Emissive Solid Materials Constructed from Tetraphenylethylene-o-carborane-based Building Blocks: Synthesis,Aggregation-induced emission,and Photophysics |
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| Authors: | Prof Dr Xiang Li Qin Zhou Miao Zhu Wei Chen Beibei Wang Prof Dr Ye Sha Prof Dr Hong Yan |
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| Institution: | 1. Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry, College of Sciences, Nanjing Agricultural University, Nanjing, 210095 P. R. China;2. Department of Chemistry and Material Science, College of Science, Nanjing Forestry University, Nanjing, 210037 P. R. China;3. State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, Jiangsu, 210023 P. R. China |
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| Abstract: | A novel kind of expanded tetraphenylethylene (TPE)-carborane-TPE pentad has been synthesized by using two adjacent carborane moieties as central bridges and three TPE units in lateral positions. Its solid-state fluorescence quantum yield was substantially increased to 68.2% by expanding the number of bridges between carborane and TPE. Subsequently, the emission color shifted from blue to orange-yellow (126 nm). Mechanical insights into the electronic structure of the extended TPE-carborane-TPE pentads were obtained from density functional theory (DFT) calculations. |
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| Keywords: | carborane tetraphenylethylene expanding aggregation-induced emission photophysics |
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