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Highly Selective Turn-on Fluorescence Sensor for Cd2+ Ions by Tripodal Organic Ligand.
- Source :
-
Journal of Fluorescence . May2024, Vol. 34 Issue 3, p1229-1240. 12p. - Publication Year :
- 2024
-
Abstract
- Organic fluorescence sensor for selectively detecting and quantifying toxic heavy metal ions has received significant interest due to their environmental hazards. Herein, we have designed and synthesized a simple tripodal Schiff base ligand (1) based on hydroxy-naphthaldehyde and tris(2-aminoethyl)amine (TREN) and demonstrated highly selective turn-on fluorescence sensing of Cd2+ ions. The free ligand did not show any fluorescence in DMF. In contrast, Cd2+ (10− 4 M) addition exhibited a strong enhancement of fluorescence at 450 nm. Interestingly, other metal ions including Zn2+, which exhibit similar chemistry, did not show any turn-on fluorescence. The concentration-dependent studies of 1 with Cd2+ showed the detection limit of 6.78 × 10− 8 M. NMR spectra of 1 with Cd2+ and computational studies were performed to understand the mechanism of sense. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10530509
- Volume :
- 34
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Journal of Fluorescence
- Publication Type :
- Academic Journal
- Accession number :
- 176996374
- Full Text :
- https://doi.org/10.1007/s10895-023-03348-3