Schiller, Jana and Perez-Ruiz, Raul and Sampedro, Diego and Marques-Lopez, Eugenia and Herrera, Raquel P. and Diaz Diaz, David (2016) Fluoride Anion Recognition by a Multifunctional Urea Derivative: An Experimental and Theoretical Study. SENSORS, 16 (5): 658. ISSN 1424-8220,
Full text not available from this repository. (Request a copy)Abstract
In this work we demonstrate the ability of a multifaceted N,N '-disubstituted urea to selectively recognize fluoride anion (F-) among other halides. This additional function is now added to its already reported organocatalytic and organogelator properties. The signaling mechanism relies on the formation of a charge-transfer (CT) complex between the urea-based sensor and F- in the ground state with a high association constant as demonstrated by absorption and fluorescence spectroscopy. The nature of the hydrogen bonding interaction between the sensor and F- was established by H-1-NMR studies and theoretical calculations. Moreover, the recovery of the sensor was achieved by addition of methanol.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | CHEMICAL WARFARE AGENTS; FLUORESCENT CHEMOSENSOR; SUPRAMOLECULAR GELS; PROTON-TRANSFER; ION DETECTION; THIOUREA; RECEPTOR; BINDING; ENERGIES; EMISSION; fluoride; anion recognition; sensor; N,N '-disubstituted urea; charge-transfer complex; association constant; absorption spectroscopy; fluorescence spectroscopy |
| Subjects: | 500 Science > 540 Chemistry & allied sciences |
| Divisions: | Chemistry and Pharmacy > Institut für Organische Chemie > Arbeitskreis Prof. Dr. David Díaz Díaz |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 25 Mar 2019 10:19 |
| Last Modified: | 25 Mar 2019 10:19 |
| URI: | https://pred.uni-regensburg.de/id/eprint/2969 |
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