Titre :

Nonconventional Three-Component Hierarchical Host-Guest Assembly Based on Mo-Blue Ring-Shaped Giant Anion, gamma-Cyclodextrin, and Dawson-type Polyoxometalate

Auteur(s) :

Moussawi, Mhamad Aly [Auteur]
Institut Lavoisier de Versailles [ILV]
Haouas, Mohamed [Auteur]
Institut Lavoisier de Versailles [ILV]
Floquet, Sébastien [Auteur]
Institut Lavoisier de Versailles [ILV]
Shepard, William E. [Auteur]
European Synchrotron Radiation Facility [ESRF]
Abramov, Pavel A. [Auteur]
Novosibirsk State University [NSU]
Sokolov, Maxim N. [Auteur]
Novosibirsk State University [NSU]
Fedin, Vladimir P. [Auteur]
Novosibirsk State University [NSU]
Cordier, Stéphane [Auteur]
Institut des Sciences Chimiques de Rennes [ISCR]
Ponchel, Anne [Auteur]
UCCS Équipe Catalyse Supramoléculaire
Monflier, Eric [Auteur]
UCCS Équipe Catalyse Supramoléculaire
Marrot, Jérôme [Auteur correspondant]
Institut Lavoisier de Versailles [ILV]
Cadot, Emmanuel [Auteur correspondant]
Institut Lavoisier de Versailles [ILV]

Titre de la revue :

Journal of the American Chemical Society

Pagination :

14376-14379

Éditeur :

American Chemical Society

Date de publication :

2017

ISSN :

0002-7863

Discipline(s) HAL :

Chimie

Résumé en anglais : [en]

In this communication, we report on a noteworthy hybrid supramolecular assembly built from three functional components hierarchically organized through noncovalent interactions. The one-pot synthesis procedure leads to the ...
Lire la suite >In this communication, we report on a noteworthy hybrid supramolecular assembly built from three functional components hierarchically organized through noncovalent interactions. The one-pot synthesis procedure leads to the formation of large Mo-blue ring-shaped anion {Mo-154}, which contains the supramolecular adduct based on the symmetric encapsulation of the Dawson-type [P2W18O62](6) anion by two gamma-cyclodextrin units. Such a nanoscopic onion-like structure, noted [P2W18O62]@2 gamma-CD@{Mo-154} has been characterized by single-crystal X-ray diffraction, thus demonstrating the capability of the giant inorganic torus to develop relevant supramolecular chemistry, probing the strong affinity of the inner and outer faces of the gamma-CD for the polyoxometalate surfaces. Furthermore, interactions and behavior in solution have been studied by multinuclear NMR spectroscopy, which supports specific interactions between gamma-CD and POM units. Finally, the formation of this three-component hybrid assembly from one-pot procedure, in water and using nearly stoichiometric conditions, is discussed in terms of the driving forces orchestrating this highly efficient multilevel recognition process.Lire moins >

Langue :

Anglais

Vulgarisation :

Non

Collections :

• Centre de Recherche en Informatique, Signal et Automatique de Lille (CRIStAL) - UMR 9189

Source :

Harvested from HAL