期刊
TETRAHEDRON
卷 75, 期 18, 页码 2670-2675出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2019.03.041
关键词
ESIPT; AIE; Tetraphenylethylene; Isomer
资金
- China Postdoctoral Science Foundation [2018M632498]
- Zhejiang Provincial Postdoctoral Fellowship [Z71101009]
- Zhejiang Provincial Natural Science Foundation of China [LQ19E030016, LY19E030006, LZ17E030001]
- Natural Science Foundation of China [51603185, 51673174, 21875219]
In this work, we report two isomers composed of 1-phenyl-1H-phenanthro[9,10-d]imidazole (PI), hydroxyl and tetraphenylethylene (WE), abbreviated as m-PITPE and p-PITPE. It is found that they exhibit similar aggregation-induced emission (AlE) behavior but totally different excited-state intramolecular proton transfer (ESIPT) characteristic, as a result of the different linkage sites of PI on TPE moiety. Theoretical calculations and their different experimental responses to F- demonstrate that only the paralinkage isomer displays ESIPT. In m-PITPE with meta-linkage, the electron cloud distribution only locates at the WE part in the singlet excited (Si) states, which results in the localized excited state without ESIPT characteristic. (C) 2019 Elsevier Ltd. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据