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- W1981567366 abstract "Abstract Three merocyanine solvatochromic dyes, Brooker's merocyanine, Reichardt's dye and 4-(2,4,6-triphenylpyridinium-1-yl)phenolate were solubilized in acetonitrile. Although solutions of each of the compounds are colored, the color disappears after protonation. Addition of various anions to solutions of the protonated dyes revealed that only CN−, F−, and H2PO4− led to the reappearance of the original color of protonated Reichardt's dye, and only CN− and F− ions caused the original color of the solutions containing the other two protonated dyes to reappear. Addition of small amounts of water to solutions containing the protonated compounds made them useful only for detecting CN− among all the other anions. A model was used to explain the experimental results, which considers proton transfer from the protonated dye to the anion through three dye:anion stoichiometries, namely 1:1, 1:2, and 1:3." @default.
- W1981567366 created "2016-06-24" @default.
- W1981567366 creator A5033004630 @default.
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- W1981567366 date "2009-08-01" @default.
- W1981567366 modified "2023-09-25" @default.
- W1981567366 title "Chromogenic anionic chemosensors based on protonated merocyanine solvatochromic dyes: Influence of the medium on the quantitative and naked-eye selective detection of anionic species" @default.
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- W1981567366 doi "https://doi.org/10.1016/j.dyepig.2008.12.013" @default.
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