Determination of aqueous inclusion complexation constants and stoichiometry of alkyl(methyl)-methylimidazolium-based ionic liquid cations and neutral cyclodextrins by affinity capillary electrophoresis - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Journal of Separation Science Année : 2007

Determination of aqueous inclusion complexation constants and stoichiometry of alkyl(methyl)-methylimidazolium-based ionic liquid cations and neutral cyclodextrins by affinity capillary electrophoresis

Anne Varenne
Juliette Sirieix-Plenet
  • Fonction : Auteur
Pierre Gareil
  • Fonction : Auteur

Résumé

Affinity CE (ACE) method was developed to characterize the complex formation between seven alkyl(methyl)methylimidazolium-based ionic liquid (IL) cations and eight neutral cyclodextrins (CD). The effective mobility data of the IL cations were processed according to classical nonlinear and linear treatments to obtain the complex stoichiometry and formation constant K. The majority of systems followed a 1:1 complexation stoichiometry model but in four cases a 1:2 stoichiometry was better satisfied. The K values obtained for each IL were compared to elucidate the main influences of IL and CD nature. The availability of these data should lend support to various application areas, including the screening and tailoring of new interactions in the solution for CE.
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Dates et versions

hal-02440088 , version 1 (14-01-2020)

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Yannis Francois, Anne Varenne, Juliette Sirieix-Plenet, Pierre Gareil. Determination of aqueous inclusion complexation constants and stoichiometry of alkyl(methyl)-methylimidazolium-based ionic liquid cations and neutral cyclodextrins by affinity capillary electrophoresis. Journal of Separation Science, 2007, 30 (5), pp.751-760. ⟨10.1002/jssc.200600386⟩. ⟨hal-02440088⟩
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