ArticleJournal of fluorescence2026
Fluorescence and Colorimetric Recognition of Fe²⁺/Fe³⁺ Using a Naphthalene-Appended 1,2,3-Triazole Chemosensor: Experimental and DFT Insights.
Article in Journal of fluorescence, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Herein, synthesis, characterization and metal ion sensing of naphthalene linked 1,2,3-triazole chemosensor (5) synthesized by CuAAC approach is reported. The new molecule yielded a unique molecular architecture with potential applications as Fe2+ and Fe3+ ions sensor using fluorescence spectroscopy as well as naked eye detection. Ion sensing experiments revealed that, a prominent selective sensing of Fe2+ over Fe3+ ions by probe 5 without any interference from other cations was observed with 1:1 binding ratio for both probe 5-Fe2+ and probe 5-Fe3+ ions as determined by Job’s plot method. The Limit of Detection (LOD) was calculated to be 82 nM and 1.8 nM for Fe2+ and Fe3+ ions, respectively. The DFT calculations were executed using B3LYP/6-311G++(d, p) for free probe and B3LYP/LANL2DZ for the associated metal complexes to elucidate binding interactions, confirming the metal-ligand interactions. The combined experimental and theoretical results provide an accurate detection framework for Fe2+/Fe3+ metal ions in environmental and biological samples.
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