Synthesis, characterization of vanillin based colorimetric chemosensor for sensing of fluoride ions
| Autor: | Vijayakumar Veeraragavan, Rajavelu Kannan |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Detection limit
010405 organic chemistry Organic Chemistry Protonation 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry Inorganic Chemistry chemistry.chemical_compound Deprotonation Ultraviolet visible spectroscopy chemistry Trifluoroacetic acid Proton NMR Titration Fluoride Spectroscopy Nuclear chemistry |
| Zdroj: | Journal of Molecular Structure. 1227:129521 |
| ISSN: | 0022-2860 |
| DOI: | 10.1016/j.molstruc.2020.129521 |
| Popis: | A novel colorimetric chemosensor (E)-4-((2-(2,4-dinitrophenyl)hydrazono)methyl)-2-methoxyphenol (VSB) was prepared, characterized using FT-IR, NMR, Mass spectrometry, UV-Visible spectroscopy and elemental analysis. VSB is documented as a colorimetric and radiometric chemosensor for particular detection of fluoride ions with the detection limit 6.1 × 10−6. The sensing mechanism of F− ion as a result of total deprotonation of OH and NH protons from VSB which is studied by UV–visible and 1H NMR titration examinations. The 1H NMR titration investigation was established the deprotonation of OH and NH protons by F− as a strong indication for fluoride ion detection. In addition, deprotonated VSB can be subjected to protonation using 0.001 M of trifluoroacetic acid as a protonating group. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect