Binding studies and anion-selective electrodes with neutral isophthalamide-based receptors
Two acyclic isophthalamide-based hosts have been synthesised and their anion binding properties have been evaluated by (1)H-NMR titrations. Different binding modes have been detected for the series of tested anions. The attachment of aminomethylpyrrole groups resulted in an improved binding selectiv...
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| Veröffentlicht in: | Analyst (London) 2015-01, Vol.140 (1), p.287-294 |
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| creator | Más-Montoya, Miriam Cuartero, María Curiel, David Ortuño, Joaquín A Soledad García, M Tárraga, Alberto |
| description | Two acyclic isophthalamide-based hosts have been synthesised and their anion binding properties have been evaluated by (1)H-NMR titrations. Different binding modes have been detected for the series of tested anions. The attachment of aminomethylpyrrole groups resulted in an improved binding selectivity. Additionally, the receptors have been incorporated as ionophores in plasticised polymeric membrane-based anion-selective electrodes. The potentiometric studies were in agreement with the NMR experiments and revealed a good sensing ability, considering the structural simplicity of the receptors and their interactions purely based on hydrogen bonding. These preliminary experiments have revealed an interesting selectivity towards highly hydrophilic anions such as fluoride and sulfate. Moreover, a particularly low detection limit (9 × 10(-7) M) has been determined for the fluoride anion. |
| doi_str_mv | 10.1039/c4an01346h |
| format | Article |
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| ispartof | Analyst (London), 2015-01, Vol.140 (1), p.287-294 |
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| source | Royal Society of Chemistry Journals Archive (1841-2007); Royal Society Of Chemistry Journals 2008-; Alma/SFX Local Collection |
| subjects | Anions Binding Electrodes Fluorides Hydrogen bonding Receptors Selectivity Titration |
| title | Binding studies and anion-selective electrodes with neutral isophthalamide-based receptors |
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