Development of a fluorescent chemosensor towards sensing and separation of Mg2+ ions in chlorophyll and hard water
| Autor: | V Chitra, V M V Enoch Israel, P. Mosae Selvakumar, G. Tamil Selvan |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Metal ions in aqueous solution
Imine 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences Fluorescence Catalysis 0104 chemical sciences Ion Metal chemistry.chemical_compound chemistry Chlorophyll visual_art Materials Chemistry visual_art.visual_art_medium Molecule 0210 nano-technology Receptor |
| Zdroj: | New Journal of Chemistry. 42:902-909 |
| ISSN: | 1369-9261 1144-0546 |
| Popis: | A dyad bearing a disulfide spacer and a naphtholyl terminal group with imine functionality has been synthesised (compound LH2) and assessed for its metal ion binding ability in an aqueous medium. This receptor molecule selectively binds Mg2+, with an enhancement in fluorescence intensity of the band at 550 nm. The results show a turn-on response for Mg2+ binding through a PET mechanism. The photophysical properties of the receptor in different solvents, at various pH values and with various metal ions are studied. The receptor molecule shows visible sensing for Mg2+ ions in a (Cynodon dactylon) plant leaf extract which contains chlorophyll. Also, a polysulphone memberane is prepared by incorporating the receptor in it and used for filtering water containing an excess of Mg2+ ions. Fluorescence signal output-based molecular logic gates (NOR, X-NOR) are proposed using H+ and Mg2+ ions as inputs into the molecule. |
| Databáze: | OpenAIRE |
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