Journal
JOURNAL OF FLUORESCENCE
Volume 29, Issue 2, Pages 451-459Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1007/s10895-019-02355-7
Keywords
Hypochlorite; Fluorescent chemodosimeter; Imidazo[1; 5-a]pyridine; Test kit; Theoretical calculations
Funding
- National Research Foundation of Korea
- Korea Environment Industry & Technology Institute [NRF-2018R1A2B6001686, KEITI-2016001970001]
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A new fluorometric chemodosimeter 2-amino-3-(((E)-3-(1-phenylimidazo[1,5-]pyridin-3-yl)benzylidene)amino)maleonitrile (BPI-MAL) has been designed and synthesized for sensing hypochlorite. BPI-MAL showed a selective turn-on fluorescence for ClO- through hypochlorite-promoted de-diaminomaleonitrile reaction. It also could detect ClO- in the presence of various competitive anions including reactive oxygen species. Interestingly, sensor BPI-MAL was successfully applied as a fluorescent test kit for ClO- determination. The sensing property and mechanism of BPI-MAL toward ClO- were studied by fluorescence and UV-vis spectroscopy, NMR titration and DFT calculations.
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