期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 56, 期 48, 页码 15299-15303出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201708119
关键词
excited-state emissions; mechanoluminescence; room-temperature phosphorescence; stimuli response
资金
- National Science Foundation of China [21325416, 51573140]
- Open Project of State Key Laboratory of Supramolecular Structure and Materials [sklssm201715]
Two stable, purely organic luminogens exhibit both mechano- (ML) and photoluminescence (PL) with dual fluorescence-phosphorescence emissions at room temperature. Careful analysis of the crystal structures, coupled with theoretical calculations, demonstrate that room-temperature phosphorescence and ML properties are strongly related to molecular packing. In particular, the formation and fracture of molecular dimers with intermolecular charge-transfer properties has a significant effect on intersystem crossing, as well as excited triplet state emissions, in both PL and ML processes.
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