期刊
SYNTHETIC METALS
卷 277, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.synthmet.2021.116784
关键词
Imidazole; Fluorescent probe; Cupric ion; Triphenylamine
资金
- National Natural Science Foundation of China [52073082, 22073025, 51603063, 51702090]
- Hubei Provincial Natural Science Foundation of China [2017CFB489]
- Hubei Provincial Department of Education [Q2016005]
In this study, a simple imidazole derivative MZ-F was synthesized and showed high sensitivity and selectivity for sensing copper ions through the formation of a 1:1 complex with Cu2+ with a detection limit of 3.93 x 10-6 mol/L.
A simple imidazole derivative modified with triphenylamine and fluorobenzene groups (MZ-F) was synthesized through one-pot multi-component ring-formation condensation. In the presence of copper ions, the acetonitrile solution of MZ-F showed a new absorption peak at longer wavelength and at the same time the fluorescence of MZ-F solution was quenched substantially. Photoluminescence spectroscopic titration showed that MZ-F formed a 1:1 complex with Cu2+ and the detection limit reached 3.93 x 10-6 mol/L. Meanwhile, MZ-F demonstrates high selectivity for sensing copper ions.
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