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Supramolecular assemblies of Al3+ complexes with vitamin D3 (cholecalciferol) and phenothiazine. Encapsulation and complexation studies in β-cyclodextrin

Abstract :

Ternary assemblies of β-cyclodextrin with cholecalciferol (or vitamin D3) or phenothiazine and Al3+ ions were studied. The stability constants of aluminium binary complexes with cholecalciferol or phenothiazine and of ternary assemblies (β-cyclodextrin, cholecalciferol or phenothiazine and Al3+) were determined using potentiometric titrations at 25 °C (I = 0.100 M). The 13C NMR spectra of the supramolecular structures in the solid state showed that ternary supramolecular structures associating β-cyclodextrin, cholecalciferol or phenothiazine and aluminium(III) ions were obtained. Finally, X-ray powder diffraction patterns showed that the ternary assemblies with phenothiazine are channel type inclusion complexes.

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https://hal.univ-angers.fr/hal-03247526
Contributeur : Okina Université d'Angers <>
Soumis le : jeudi 3 juin 2021 - 10:21:48
Dernière modification le : vendredi 4 juin 2021 - 03:10:02

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D. Soares, M. Noseda, J. Felcman, Mustayeen Ahmed Khan, Gilles Bouet, et al.. Supramolecular assemblies of Al3+ complexes with vitamin D3 (cholecalciferol) and phenothiazine. Encapsulation and complexation studies in β-cyclodextrin. Journal of Inclusion Phenomena and Macrocyclic Chemistry, Springer Verlag, 2013, 75 (1-2), pp.137 - 145. ⟨10.1007/s10847-012-0154-4⟩. ⟨hal-03247526⟩

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