Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 58, Issue 49, Pages 17651-17655Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201910719
Keywords
aggregation-induced emission; mechanoluminescence; room-temperature phosphorescence; thermally activated delayed fluorescence
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Funding
- National Natural Science Foundation of China [91833304, 21721005]
- National Basic Research Program of China (973 Programs) [2015CB655002]
- Shenzhen Peacock Plan [KQTD20170330110107046]
- Shenzhen Technology and Innovation Commission [JCYJ20180507182244027]
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Aggregation-induced emission (AIE), thermally activated delayed fluorescence (TADF), room-temperature phosphorescence (RTP), and mechanoluminescence (ML) have attracted widespread interest. However, a multifunctional organic emitter exhibiting simultaneous AIE, TADF, RTP, and ML has not been reported. Now, two multifunctional blue emitters with very simple structures, mono-DMACDPS and Me-DMACDPS, exhibit typical AIE, TADF, and RTP properties but different behavior in mechanoluminescence. Crystal structure analysis reveals that large dipole moment and multiple intermolecular interactions with tight packing mode endow mono-DMACDPS with strong ML. Combined with the data of crystal analysis and theoretical calculation, the separated monomer and dimer in the crystal lead to the typical TADF and RTP properties, respectively. Simple-structure mono-DMACDPS is the first example realizing TADF, RTP, AIE, and ML simultaneously.
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