A simple pyridine based fluorescent chemosensor for selective detection of copper ion
| Autor: | Kasi Nehru, Jegathalaprathaban Rajesh, Gujuluva Gangatharan Vinoth Kumar, R. Bhaskar, Dhanushkodi Mohanasundaram, Murugesan Sankarganesh |
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| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Ions Chemistry Pyridines Cyan Metal ions in aqueous solution chemistry.chemical_element Photochemistry Fluorescence Copper Atomic and Molecular Physics and Optics Analytical Chemistry Ion Metal Spectrometry Fluorescence visual_art visual_art.visual_art_medium Absorption (chemistry) Colorimetry Instrumentation Spectroscopy Fluorescent Dyes |
| Zdroj: | Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy. 265 |
| ISSN: | 1873-3557 |
| Popis: | A feasibly constructed novel pyridine based receptor (S) has been reported for the selective detection of copper ion over other metal ions. The metal sensing ability of receptor with diverse metal ions were studied by colorimetry, absorption and emission spectroscopic systems in CH3CN/H2O (7:3, v/v). This receptor reveals a drastic color converts from vapid to yellow and cyan under normal light and UV light with copper ion. Further, S-Cu2+ complex exhibits new UV–Visible band at 419 nm and intense fluorescence band at 494 nm upon the excitation at 388 nm. The stoichiometric binding ratio of receptor with metal ion was confirmed with Job’s method and ESI-Mass also further supported the complexation. Besides, limits of detection of Cu2+ were calculated to be 0.25 μM. The limiting capacity of receptor with Cu2+ ion was additionally explored by quantum chemical calculation. Moreover, this receptor was effectively utilized for the measurement of Cu2+ ion in various water tests. |
| Databáze: | OpenAIRE |
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