Journal
MATERIALS CHEMISTRY FRONTIERS
Volume 1, Issue 6, Pages 1125-1129Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6qm00343e
Keywords
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Funding
- Ministry of Science and Technology of China [2013CB834702]
- National Natural Science Foundation of China [21525417]
- Natural Science Foundation of Guangdong Province [2016A030312002]
- National Program for Support of Top-Notch Young Professionals
- Fundamental Research Funds for the Central Universities [2015ZY013]
- Innovation and Technology Commission of Hong Kong [ITC-CNERC14S01]
- Guangdong Innovative Research Team Program [201101C0105067115]
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Tetraphenylfuran (TPF) and its control molecule tetraphenylthiophene (TPT), which are structurally similar to the aggregation-induced emission (AIE) active 2,3,4,5-tetraphenylsilole, were synthesized. Surprisingly, investigation of its photo-physical properties showed that TPF exhibits the aggregation-caused quenching effect instead of AIE characteristics, whereas TPT exhibits a quite weak AIE effect. Combining experimental results and theoretical calculations, this phenomenon was concluded to be co-caused by the restriction of intramolecular rotation (RIR), the mechanism of AIE, and the conjugation effect. Thus, this work provides an insight into RIR, which will greatly promote the development of AIE.
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