title: Ionic liquids and cyclodextrin inclusion complexes: limitation of the affinity capillary electrophoresis technique.
abstract: The state of the art of inclusion complex formation between cyclodextrins and ionic liquids is reported. Mechanisms, stoichiometries, and binding constants are summarized and classified by anion. We investigated the supramolecular interactions between the β-cyclodextrin cavity and six ionic liquids based on 1-dodecyl-3-methylimidazolium by affinity capillary electrophoresis and compared the results with those obtained by isothermal titration calorimetry. We show that the presence of basic or acidic buffers leads to a metathesis reaction, underlining the limitation of the affinity capillary electrophoresis technique.
authors.affiliation: UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), Normandie Université, 1 rue Tesnière, 76000, Rouen, France.
authors.forename: Nadine
authors.initials: N
authors.lastname: Mofaddel
authors.affiliation: Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, 59140, Dunkerque, France.
authors.forename: Sophie
authors.initials: S
authors.lastname: Fourmentin
authors.affiliation: UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), Normandie Université, 1 rue Tesnière, 76000, Rouen, France.|SPCMIB, CNRS-UMR 5068, Université Toulouse III - Paul Sabatier, 118 route de Narbonne, 31062, Toulouse Cedex 9, France.
authors.forename: Fréderic
authors.initials: F
authors.lastname: Guillen
authors.affiliation: Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, ULCO, 59140, Dunkerque, France.
authors.forename: David
authors.initials: D
authors.lastname: Landy
authors.affiliation: UNIROUEN, INSA Rouen, CNRS, COBRA (UMR 6014), Normandie Université, 1 rue Tesnière, 76000, Rouen, France. geraldine.gouhier@univ-rouen.fr.
authors.forename: Géraldine
authors.initials: G
authors.lastname: Gouhier
keywords: Affinity capillary electrophoresis; Binding constants; Cyclodextrin; Ionic liquid; Isothermal titration calorimetry