Journal
TETRAHEDRON LETTERS
Volume 61, Issue 45, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2020.152470
Keywords
Fluorescent probe; Oxalyl chloride; Dual channel response; Test strip
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Funding
- National Natural Science Foundation of China [21878023, U1608222]
- Program for Distinguished Professor of Liaoning Province
- Natural Science Foundation of Liaoning Province [20170540019]
- Doctoral Scientific Research Foundation of Liaoning Province [20170520416]
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We herein reported a new fluorescent probe TCF-EA for detection of oxalyl chloride in dichloromethane. Probe TCF-EA exhibits high selectivity and sensitivity to oxalyl chloride with a low detection limit (2.9 nM) and fast response (<5min). The probe displays dual channel responses to oxalyl chloride, the color is changed from pink to light yellow, and the fluorescence is quenched at 614 nm. The detection mechanism was proved to undergo amidation and esterification tandem reactions between TCF-EA and oxalyl chloride. Moreover, the probe can be applied to prepare test strips to detect oxalyl chloride in the gas phase. (C) 2020 Elsevier Ltd. All rights reserved.
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