期刊
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
卷 138, 期 36, 页码 11469-11472出版社
AMER CHEMICAL SOC
DOI: 10.1021/jacs.6b07087
关键词
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资金
- National Natural Science Foundation of China [21072067]
- HUST Interdisciplinary Innovation Team [2015ZDTD055]
The propeller-like conformation of tetraphenylethylene (TPE) with aggregation-induced emission (AIE) effect was partially and completely fixed by intramolecular cyclization for the first time. The immobilization of propeller-like conformation was found to show great advantages in determining the enantiomer purity, identifying the chiral amines. The completely fixed conformers are resolved into M- and P-enantiomer, which showed mirror imaged CD and almost quantitative fluorescence quantum yield. Furthermore, it also showed a mirror and large circularly polarized luminescence dissymmetric factor, depending on the helicity of the enantiomer. The result provides the most direct and persuasive evidence for AIE via the restriction of intramolecular rotation and finds the new insight of the compounds in chiroptical property.
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