期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 117, 期 44, 页码 23117-23125出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp405664m
关键词
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资金
- 973 Program [2013CB834702, 2009CB623605]
- Natural Science Foundation of China [21074045, 21204027, 21221063]
- Research Fund for the Doctoral Program of Higher Education of China [20120061120016]
- Project of Jilin Province [20100704]
Two 9,10-divinylanthracene oligomers containing phenothiazines (AnPHZ2 and AnPHZ4) are synthesized, and their intramolecular charge transfer as well as aggregation-induced emission (ATE) properties are investigated. Both oligomers show typical ATE properties as well as solvent polarity dependent emission. Time-resolved fluorescence spectra revealed that the twisted intramolecular charge transfer state formed in polar solvents accounts for the weak emission with large Stokes shifts, and the interactions between solvent and solutes facilitate the nonradiative decay. The restriction of intramolecular torsion induced by supramolecular interactions in aggregates eliminates the charge transfer state, thus resulting in efficient ALE.
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