Novel quinolinium-derivated fluorescent fluoride chemosensor based on the F−-triggered cascade reaction

The F−-triggered cascade reaction followed by formation of a non-fluorescent the neutral quinolone was first disclosed. [Display omitted] A quinolinium-based probe (QLS) was designed and successfully applied to detect fluoride based on F−-triggered cascade reaction followed by formation of a non-flu...

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Bibliographic Details
Published in:Tetrahedron letters 2022-06, Vol.100, p.153870, Article 153870
Main Authors: Chen, Xi, Chen, Zhihua, Hu, Yan, Ma, Lili, Zhang, Ziyi, Yi, Fengping, Zhang, Hua, Liu, Chuanxiang
Format: Article
Language:English
Subjects:
Anion sensor
Cascade reaction
Fluorescence sensor
Quinolinium
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Summary:The F−-triggered cascade reaction followed by formation of a non-fluorescent the neutral quinolone was first disclosed. [Display omitted] A quinolinium-based probe (QLS) was designed and successfully applied to detect fluoride based on F−-triggered cascade reaction followed by formation of a non-fluorescent the neutral quinolone. The probe displayed significant changes in UV–visible absorption (red-shift 150 nm) and fluorescence emission intensities turn-off selectively for recognition of F−. Compared to the nonquaternary salt forms (QL), NMR titration and MS analysis were performed to confirm the sensing mechanism. Accordingly, the fluorescent test paper was prepared and conveniently used to detect fluoride in aqueous solution.
ISSN:0040-4039
1873-3581
DOI:10.1016/j.tetlet.2022.153870