A novel quinoline derivative as dual chemosensor for selective sensing of Al3+ by fluorescent and Fe2+ by colorimetric methods
| Autor: | Wei-Wu Song, Yongjie Ding, Ya-Hong Chen, Zeng-Chen Liu, Ruiqi Han, Guanglu Liu, Chun-Xiang Zhao, Pengcheng Zhang, Lin Yun |
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| Rok vydání: | 2021 |
| Předmět: |
Detection limit
010405 organic chemistry Organic Chemistry Quinoline 010402 general chemistry Hydrazide Photochemistry 01 natural sciences Fluorescence 0104 chemical sciences Analytical Chemistry Inorganic Chemistry chemistry.chemical_compound chemistry Aluminum Ion Proton NMR Spectroscopy Derivative (chemistry) |
| Zdroj: | Journal of Molecular Structure. 1231:129965 |
| ISSN: | 0022-2860 |
| Popis: | A simple and novel quinoline derivative (QN), based on quinoline-8-carboxaldehyde and 3‑hydroxy-2-naphthoic hydrazide was synthesized. The structure of chemosensor QN was confirmed by X-ray Crystallography. The chemosensor QN as dual chemosensor showed selective fluorescence recognition of Al3+ and colorimetric detection of Fe2+. In the presence of Al3+, the sensor QN generated a noticeable fluorescence enhancement accompanied with obvious color change from colorless to yellowish green. Moreover, QN was successfully used for colorimetric sensing for Fe2+, while the solution color changed from pale yellow to dark green. The detection limit was obtained to be 1.22 × 10−8 mol L−1 for Al3+ and 1.04 × 10−7 mol L−1 for Fe2+. The sensing mechanism of sensor QN toward Al3+ and Fe2+ were investigated by 1H NMR, ESI-MS and IR. Moreover, the coordination modes of QN-Al3+ and QN-Fe2+were confirmed by theoretical calculations. |
| Databáze: | OpenAIRE |
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