期刊
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
卷 353, 期 -, 页码 416-423出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2017.11.044
关键词
Proton transfer; Photoinduced planarization; Photodissociation; AIEE; Isomerization
资金
- Council of Scientific and Industrial Research, India
- UGC
Most of the excited state proton transfer exhibiting molecules show a dual emission. These emissions appear from two different conformers which equilibrate in the ground state. In the present work, we demonstrate an excited state intramolecular proton transfer exhibiting molecule which exhibits triple emission from different excited state species. The highly Stokes shifted normal emission is obtained by photoinduced planarization, and the keto-tautomer emission generates due to the phtotoinduced proton transfer. In the excited state, the tautomer undergoes torsional rotation induced isomerization to generate one more keto emission. The different ground state conformers of the molecule are separated from each other, and are exploited to produce aggregation induced emission enhancement with different emission colors. Thus, a single molecule is represented as a dual color emitting molecule. (C) 2017 Elsevier B.V. All rights reserved.
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