Anion selectivities of trifluoroacetophenone derivatives as neutral ionophores in solvent-polymeric membranes |
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| Authors: | Christoph Behringer Beatrice Lehmann Jean-Pierre Haug Kurt Seiler Werner E Morf Karel Hartman Wilhelm Simon |
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| Institution: | Laboratorium für Organische Chemie, Eidgenössische Technische Hochschule, CH-8092 Zürich Switzerland |
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| Abstract: | Trifluoroacetophenones with different substituents in the para-position are studied in order to examine their anion selectivities in solvent-polymeric membranes. The selectivities of the corresponding ion-selective electrodes and the hydration of the ligands in membranes depend on the Hammett constants σ of the substituents. Better selectivities for carbonate over chloride were reached throughout for ligands with substituents of high σ values. |
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