4.7 Article

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

Journal

CHEMICAL COMMUNICATIONS
Volume 48, Issue 86, Pages 10675-10677

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/c2cc35641d

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Funding

  1. National Science Foundation of China [51173018]
  2. 973 Programs [2011CB935702, 2009CB623605]
  3. Fundamental Research Funds for the Central Universities
  4. RPC Grants of HKUST [RPC11SC09]
  5. Research Grants Council of Hong Kong [HKUST2/CRF/10]

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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.

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