Electrochemical Anion Recognition By Novel Ferrocenyl Imidazole Systems
Author(s): Jean-Luc Thomas | Joshua Howarth | Anthony M. KennedyJournal: Molecules ISSN 1420-3049
Volume: 7; Issue: 12; Start page: 861; Date: 2002;
Original page
Keywords: Ferrocenylimidazolium salts | anion receptors | 1H-NMR titrations | cyclovoltammetry | recognition
ABSTRACT
A novel class of anion receptors with with C-H···X- hydrogen bonding is introduced and demonstrated for Cl-, Br-, NO3- and HSO4- recognition. Cyclic voltammetry revealed that novel ferrocenylimidazolium salts, syntheses of which are briefly described, selectively complex and electrochemically recognise guest anions. Futhermore, proton NMR spectroscopy indicated the formation of 1:2 stoichiometric complexes with Cl-, Br and I- and 1:1 stoichiometric complexes with NO3- and HSO4-.
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