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Anthracene scaffold as highly selective chemosensor for Al3+ and its AIEE activity.
- Source :
-
Photochemical & Photobiological Sciences . Jun2023, Vol. 22 Issue 6, p1491-1503. 13p. - Publication Year :
- 2023
-
Abstract
- Fluorescent chemosensor, 3-(Anthracen-2-yliminomethyl)-benzene-1,2-diol (ANB) has been synthesized by one-step condensation of 2-aminoanthracene and 2,3-dihydroxybenzaldehyde and characterized using 1H-NMR, FT-IR and Mass spectroscopic techniques. The probe ANB was found to be an efficient 'turn-on' fluorescence chemosensor for the selective detection of Al3+ ion over other metal ions in an aqueous solution. The chemosensor exhibits ~ 27-fold enhancement of emission intensity in presence of Al3+ ion. Fluorescence quantum values for ANB and (Al3+-ANB)-complex are 0.004 and 0.097, respectively. In addition, the binding constant and the limit of detection were found to be 1.22 × 104 M−1 and 0.391 µM, respectively. The chemosensor ANB binds to Al3+ ions in 2:1 stoichiometric ratio which was supported by Job's plot, 1H-NMR titration and florescence titration. Fluorescence reversibility of the sensor complex was well established by adding EDTA in the same condition and a molecular INHIBIT logic gate was fabricated using this reversible nature of the sensor complex. Additionally, the chemosensor ANB shows a novel aggregation-induced enhanced emission phenomenon, where the aggregate hydrosol of ANB shows enhance emission intensity. [ABSTRACT FROM AUTHOR]
- Subjects :
- *ANTHRACENE
*LOGIC circuits
*BINDING constant
*METAL ions
*DETECTION limit
Subjects
Details
- Language :
- English
- ISSN :
- 1474905X
- Volume :
- 22
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- Photochemical & Photobiological Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 164610530
- Full Text :
- https://doi.org/10.1007/s43630-023-00392-7