Journal
TETRAHEDRON
Volume 104, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2021.132583
Keywords
Diarylethene; Chemical sensor; Photochromism; Cu2+/Cd2+ detections
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Funding
- National Natural Science Foundation of China [21861017, 41867053]
- Natural Science Foundation of Jiangxi Province [20192ACBL20011]
- Key Project of the Science Funds of Jiangxi Education Office [GJJ201105]
- Postgraduate Innovation Special Fund of Jiangxi Science and Technology Normal University [YC2019-X03]
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A dual-functional sensor DTF-o with a photochromic diarylethene moiety has been designed and synthesized. It was confirmed to selectively recognize Cu2+ and detect Cu2+ in solution.
A dual-functional sensor DTF-o with a photochromic diarylethene moiety has been designed and synthesized. Its structure was confirmed and analyzed by NMR and MS. The photochromism and fluorescence photoswitching properties of DTF-o were studied in acetonitrile/water (9:1, v/v) solution. DTF-o could selectively recognize Cu2+ by changing its color from colorless to yellow which was attributed to the metal-to-ligand charge transfer (MLCT) absorption band of metal-ligand cooperation. Meanwhile, DTF-o could also be used to detect Cu2+ through obvious emission intensity enhancement by inhibition of C]N isomerization with chelation enhanced fluorescence (CHEF). Finally, DTF-o was successfully used in practical samples and made into test strips to detect Cu2+/Cd2+ with high accuracy. (C) 2021 Elsevier Ltd. All rights reserved.
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