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- Title
Triazole-Bridged Anthracene-Sugar Derivative for the Detection of Picric Acid and Au(III) Ions in Water Medium and Real Applications.
- Authors
Dey, Biman; Boje, Domngam; Giri, Santanab; Atta, Ananta Kumar
- Abstract
A triazole-bridged anthracene-sugar derivative 1 was designed and synthesized in one step. The sensing ability of 1 towards picric acid over other nitroaromatic compounds was established by absorbance and fluorescence spectroscopy in a water−acetonitrile medium (3 : 2, v/v). Furthermore, compound 1 could recognize Au(III) ions in 100% water among different metal species and anions. In the presence of picric acid, the receptor's fluorescence quenches within a minute. The Stern–Volmer quenching constants for picric acid and Au(III) ions were observed to be 1.59 × 105 and 1.8 × 105 M–1, respectively. Spectroscopic studies and density functional theory calculations supported the formation of the non-emissive charge transfer complex 1-picric acid after the interaction between 1 and picric acid. The probe showed a 1 : 1 binding mode for picric acid and Au(III) ions. The detection limits of 1 for picric acid and Au(III) were calculated to be 0.09 and 0.094 µM, respectively. Furthermore, receptor 1 has been effectively utilized to sense picric acid in river, pond, and tap water samples. Interestingly, it was found that the quenching process of 1 with picric acid is totally opposite to quenching with Au(III).
- Subjects
PICRIC acid; NITROAROMATIC compounds; ANTHRACENE derivatives; ELECTRON donor-acceptor complexes; DENSITY functional theory; IONS
- Publication
Journal of Analytical Chemistry, 2024, Vol 79, Issue 4, p389
- ISSN
1061-9348
- Publication type
Article
- DOI
10.1134/S106193482404004X