Supramolecular Association between γ-Cyclodextrin and Preyssler-Type Polyoxotungstate |
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| Authors: | Nathalie Leclerc,Mohamed Haouas,Clé ment Falaise,Serge Al Bacha,Loï c Assaud,Emmanuel Cadot |
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| Affiliation: | 1.Institut Lavoisier de Versailles, UMR 8180 CNRS, UVSQ, Université Paris-Saclay, 78035 Versailles, France; (C.F.); (S.A.B.); (E.C.);2.Institut de Chimie Moléculaire et des Matériaux d’Orsay (ICMMO)—ERIEE, UMR 8182 CNRS, Université Paris-Saclay, 91400 Orsay, France; |
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| Abstract: | The development of hybrid materials based on polyoxometalates constitutes a strategy for the design of multifunctional materials. The slow evaporation of an aqueous solution of [NaP5W30O110]14− in the presence of γ-Cyclodextrin (γ-CD) led to the crystallization of a K6Na8{[NaP5W30O110]•(C48H80O40)}•23H2O (NaP5W30•1CD) supramolecular compound, which was characterized by single-crystal X-ray diffraction, IR-spectroscopy, thermogravimetric and elemental analyses. Structural analysis revealed the formation of 1:1 {[NaP5W30O110]•[γ-CD]}14− adduct in the solid state. Studies in solution by cyclic voltammetry, electrochemical impedance spectroscopy, 1H NMR spectroscopy, and 31P DOSY, have demonstrated weak interactions between the inorganic anion and the macrocyclic organic molecule. |
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| Keywords: | polyoxometalate supramolecular adduct XRD structure NMR spectroscopy cyclic voltammetry electrochemical impedance spectroscopy |
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