New Journal of Chemistry p. 10819 - 10832 (2020)
Update date:2022-08-29
Topics:
Manna, Amit Kumar
Chowdhury, Shubhamoy
Patra, Goutam K.
Herein, we have presented a phenyl thiadiazole-based Schiff base receptor, 2-[(Z)-(5-phenyl-1,3,4-thiadiazol-2-ylimino)methyl]-6-methoxy-4-nitrophenol (L) for the first time for turn-on fluorescent, colourimetric detection of Al3+ ions. The chemosensor L displayed very quick responses, excellent selectivity and sensitivity towards Al3+ ions in methanol-Tris-HCl buffer medium (10 mM, pH 7.2, and 1?:?1 v/v) with colourimetric and fluorometric detection limit values of 1.43 × 10-7 M and 1.15 × 10-7 M, respectively. The binding stoichiometry was obtained as 2?:?1 from the Job plot analysis and ESI-MS spectra with the association constant value of 1.76 × 102 M-1/2. The experimental results have further been supported by thorough DFT and TD-DFT studies. The chemosensor L can be applied for the formation of binary logical devices, recovery of contaminated water samples and smartphone-based chemical analysis.
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