Locking the phenyl rings of tetraphenylethene step by step: understanding the mechanism of aggregation-induced emission

Stepwise locking of phenyl rings of tetraphenylethene increases the emission efficiency of luminogen solutions gradually, thus verifying the restriction of intramolecular rotation (RIR) mechanism of the aggregation induced emission phenomenon. The emission of the luminogen with one "O" bri...

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Bibliographic Details
Published in:Chemical communications (Cambridge, England) England), 2012-01, Vol.48 (86), p.10675-10677
Main Authors: Shi, Junqing, Chang, Ning, Li, Cuihong, Mei, Ju, Deng, Chunmei, Luo, Xiaoliang, Liu, Zhengping, Bo, Zhishan, Dong, Yong Qiang, Tang, Ben Zhong
Format: Article
Language:English
Subjects:
Agglomeration
Benzene Derivatives - chemistry
Constrictions
Crystallization
Emission
Ethylenes - chemistry
Heating
Locking
Phenyls
Solid state
Spectrometry, Fluorescence
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Summary:Stepwise locking of phenyl rings of tetraphenylethene increases the emission efficiency of luminogen solutions gradually, thus verifying the restriction of intramolecular rotation (RIR) mechanism of the aggregation induced emission phenomenon. The emission of the luminogen with one "O" bridge could be tuned reversibly in solid state through repeated heating and grinding.
ISSN:1359-7345
1364-548X
DOI:10.1039/c2cc35641d