Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions
Abstract CQHC, a novel colorimetric fluorescent sensor, developed for the selective sensing of ions and well characterised, including SC-XRD. It demonstrated selective sensing for Co2+, Zn2+, Hg2+ and F– using absorbance titration at 420 nm, 446 nm and the binding constants estimated follows the ord...
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Nature Portfolio
2025-01-01
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| Online Access: | https://doi.org/10.1038/s41598-024-84414-z |
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| author | A. V. Ashwathi Sabeel M. Basheer |
| author_facet | A. V. Ashwathi Sabeel M. Basheer |
| author_sort | A. V. Ashwathi |
| collection | DOAJ |
| description | Abstract CQHC, a novel colorimetric fluorescent sensor, developed for the selective sensing of ions and well characterised, including SC-XRD. It demonstrated selective sensing for Co2+, Zn2+, Hg2+ and F– using absorbance titration at 420 nm, 446 nm and the binding constants estimated follows the order F– > Co2+ > Hg2+ > Zn2+. On light of this, molecular logic gate was built for CQHC’s selective multi-ion detection. However, fluorescence titration analysis revealed that CQHC is solely selective for F– ions. This conclusion was validated by 1H–NMR titration, clearly showed deprotonation occurs from N3–H. Fluorescent decay titration, kinetic investigations and computational studies all contributed to the selective sensing of F–. According to TD–DFT calculations, added fluoride ion interacts with N3–H proton and deprotonates to generate F–H in the excited state. |
| format | Article |
| id | doaj-art-a3c58e71857d48638e01e2799795d277 |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-a3c58e71857d48638e01e2799795d2772025-01-19T12:24:08ZengNature PortfolioScientific Reports2045-23222025-01-0115111310.1038/s41598-024-84414-zSelective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functionsA. V. Ashwathi0Sabeel M. Basheer1Department of Chemistry, School of Advanced Sciences, VIT-AP UniversityDepartment of Chemistry, School of Advanced Sciences, VIT-AP UniversityAbstract CQHC, a novel colorimetric fluorescent sensor, developed for the selective sensing of ions and well characterised, including SC-XRD. It demonstrated selective sensing for Co2+, Zn2+, Hg2+ and F– using absorbance titration at 420 nm, 446 nm and the binding constants estimated follows the order F– > Co2+ > Hg2+ > Zn2+. On light of this, molecular logic gate was built for CQHC’s selective multi-ion detection. However, fluorescence titration analysis revealed that CQHC is solely selective for F– ions. This conclusion was validated by 1H–NMR titration, clearly showed deprotonation occurs from N3–H. Fluorescent decay titration, kinetic investigations and computational studies all contributed to the selective sensing of F–. According to TD–DFT calculations, added fluoride ion interacts with N3–H proton and deprotonates to generate F–H in the excited state.https://doi.org/10.1038/s41598-024-84414-zChemosensorFluorescenceKineticsLifetimeDFTMolecular logic gate |
| spellingShingle | A. V. Ashwathi Sabeel M. Basheer Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions Scientific Reports Chemosensor Fluorescence Kinetics Lifetime DFT Molecular logic gate |
| title | Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions |
| title_full | Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions |
| title_fullStr | Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions |
| title_full_unstemmed | Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions |
| title_short | Selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions |
| title_sort | selective fluoride ion sensing using novel quinoline chemosensor insights into kinetics and molecular logic gate functions |
| topic | Chemosensor Fluorescence Kinetics Lifetime DFT Molecular logic gate |
| url | https://doi.org/10.1038/s41598-024-84414-z |
| work_keys_str_mv | AT avashwathi selectivefluorideionsensingusingnovelquinolinechemosensorinsightsintokineticsandmolecularlogicgatefunctions AT sabeelmbasheer selectivefluorideionsensingusingnovelquinolinechemosensorinsightsintokineticsandmolecularlogicgatefunctions |