Petdum, Anuwut and Sirirak, Jitnapa and Lee, Vannajan Sanghiran and Nienaber, Hubert A. and Panchan, Waraporn and Sooksimuang, Thanasat and Wanichacheva, Nantanit (2020) New [5]helicene derivatives with large Stokes shifts for Hg2+ determination and their application in drinking water, river water and tuna fillet. Science, Engineering and Health Studies, 14 (1). pp. 32-46. ISSN 2630-0087,
Full text not available from this repository.Abstract
Two novel [5]helicene-based fluorescence sensors. H1 (2,2'-((propane-1.3-diylbis(sulfanediyl))bis(ethane-2,1-diyl))bis(7,12-dhnethoxy-4,5,14,15-tetrahydro-1H-dinaplitho[2,1-e:1',2'-g]isoindole-1,3(2H)-dione) and H1A (2,2'(propaiie-1,3-diylbis(sulfanediyl))bis(ethaiie-2,1-diyl))bis(7,12-dimemoxy-1H-dinaphtho[2,1'-e:1',2'g]isoiiidole-l, 3(2H)-dione) were successfully prepared and characterized for their application in the determination of Hg2+ ions. The syntheses of H1 and H1A involved simple reactions including alkylation and imide formation. The spectroscopic results of H1 and H1 A showed strong fluorescence in the visible region and large Stokes shifts (150-200 nm). Sensors provided Hg2+-selective fluorescence quenching by discriminating interfering ions including Cd2+, Co2+, Zn2+ Pb2+, Ag+ and Cu2+. The binding mode of the sensors was also explored using molecular modeling. In addition. H1 showed the potential to determine Hg2+ in real samples such as drinking water, river water and tuna fillet. © 2020 Science, Engineering and Health Studies. All rights reserved.
| Item Type: | Article |
|---|---|
| Funders: | Grant RSA 6080058 from the Thailand Research Fund and Faculty of Science, Silpakorn University, Thailand, Thailand Graduate Institute of Science and Technology (TGIST, Grant TG-33-16-59-012D) from National Science and Technology Development Agency (NSTDA), Thailand |
| Uncontrolled Keywords: | Fluorescence sensor; Mercury ion; Selectivity; [5]helicene |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Chemistry |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 18 Aug 2020 07:13 |
| Last Modified: | 18 Aug 2020 07:13 |
| URI: | http://eprints.um.edu.my/id/eprint/25401 |
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