Pyridine-coumarin chemosensor for selective determination of CN− ions in water and organic media via ester bond cleavage
Chemical Papers, 2026 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Publication Date: 2026
- Doi Number: 10.1007/s11696-026-05131-7
- Journal Name: Chemical Papers
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Keywords: Chemosensor, Fluorescence, Pyridine-coumarin conjugate
- Ankara Haci Bayram Veli University Affiliated: Yes
Abstract
This study focuses on the effective sensing of common ions by developing a coumarin-based chemosensor. In this study, a novel pyridine–coumarin conjugate (1) was synthesized and characterized for the selective and sensitive detection of CN− ions in water. The structure of the chemosensor was confirmed by 1H NMR, 13C NMR, and mass spectrometric analyses. Spectroscopic measurements in water indicated the selective fluorimetric sensing of CN− ions with a limit of detection of 29 nM. In contrast, in acetonitrile, 1 revealed significant bathochromic shifts and increased fluorescence in the presence of CN⁻ and F⁻, with 0.24 nM and 2.17 nM limit of detection, respectively.