期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 57, 期 30, 页码 9357-9361出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201804402
关键词
circularly polarized luminescence; self-assembly; supramolecular chirality; upconversion
资金
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12020200]
- National Natural Science Foundation of China [51673050, 91027042]
- Ministry of Science and Technology of China [2016YFA0203400]
- New Hundred-Talent Program research fund of the Chinese Academy of Sciences
- Key Research Program of Frontier Sciences, CAS [QYZDJ-SSW-SLH044]
Through mimicking both the chiral and energy transfer in an artificial self-assembled system, not only was chiral transfer realized but also a dual upconverted and downconverted energy transfer system was created that emit circularly polarized luminescence. The individual chiral -gelator can self-assemble into a nanofiber exhibiting supramolecular chirality and circularly polarized luminescence (CPL). In the presence of an achiral sensitizer Pd-II octaethylporphyrin derivative, both chirality transfer from chiral gelator to achiral sensitizer and triplet-triplet energy transfer from excited sensitizer to chiral gelator could be realized. Upconverted CPL could be observed through a triplet-triplet annihilation photon upconversion (TTA-UC), while downconverted CPL could be obtained from chirality-transfer-induced emission of the achiral sensitizer. The interplay between chiral energy acceptor and achiral sensitizer promoted the communication of chiral and excited energy information.
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