Published January 1, 2018
| Version v1
Journal article
Open
A coumarin-pyrazolone based fluorescent probe for selective colorimetric and fluorimetric fluoride detection: Synthesis, spectroscopic properties and DFT calculations
- 1. Gazi Univ, Dept Chem, TR-06500 Ankara, Turkey
- 2. Gazi Univ, Inst Sci & Technol, Adv Technol Dept, Ankara, Turkey
Description
A novel coumarin based fluorescence anion chemosensor (P-1) bearing pyrazolone as a receptoric part was synthesized and characterized by using FT-IR, H-1/C-13 NMR and HRMS for the purpose of recognition of anions in DMSO. P-1 has four tautomeric structures and the most stable tautomeric form of P-1 was determined experimentally and theoretically. The chemosensor P-1 consists two receptoric parts as free amide N-H and enamine N-H which is stabilized intramolecular H-bonding with coumarin carbonyl oxygen. P-1 interacts selectively with fluoride anion via amide N-H. The selectivity and sensitivity of probe to various anions were determined with spectrophotometric and H-1 NMR titration techniques as experimentally and all results were also explained by theoretical calculations. (C) 2018 Elsevier B.V. All rights reserved.
Files
bib-f4a9bc14-82cf-4030-bf54-495f074bc89f.txt
Files
(269 Bytes)
| Name | Size | Download all |
|---|---|---|
|
md5:68c3f1ad513554454080237b19c5adfe
|
269 Bytes | Preview Download |