Supramolecular Association between γ-Cyclodextrin and Preyssler-Type Polyoxotungstate

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 [NaP(5)W(30)O(110)](14−) in the presence of γ-Cyclodextrin (γ-CD) led to the crystallization of a K(6)Na(8){[NaP(5)W(30)O(1...

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Detalles Bibliográficos
Autores principales: Leclerc, Nathalie, Haouas, Mohamed, Falaise, Clément, Al Bacha, Serge, Assaud, Loïc, Cadot, Emmanuel
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8434062/
https://www.ncbi.nlm.nih.gov/pubmed/34500556
http://dx.doi.org/10.3390/molecules26175126
Descripción
Sumario: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 [NaP(5)W(30)O(110)](14−) in the presence of γ-Cyclodextrin (γ-CD) led to the crystallization of a K(6)Na(8){[NaP(5)W(30)O(110)]•(C(48)H(80)O(40))}•23H(2)O (NaP(5)W(30)•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 {[NaP(5)W(30)O(110)]•[γ-CD]}(14−) adduct in the solid state. Studies in solution by cyclic voltammetry, electrochemical impedance spectroscopy, (1)H NMR spectroscopy, and (31)P DOSY, have demonstrated weak interactions between the inorganic anion and the macrocyclic organic molecule.

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