• Citer

Self-assembly via ionic interactions of calix[6]arene based receptors displaying remarkable host-guest properties toward neutral guests

par Le Gac, Stéphane ;Luhmer, Michel ;Reinaud, Olivia;Jabin, Ivan
Référence Tetrahedron, 63, 14, page (10721-10730)
Publication Publié, 2007

Article révisé par les pairs

• Accès en ligne
• Détails
• Contenu
• Statistiques

Résumé :

The association of a C3v-symmetrical calix[6]tris-amine with different concave tris-carboxylic acids of various degrees of flexibility has been explored by 1H NMR spectroscopy. In all cases, self-assembled structures directed by the selective inclusion of a neutral guest molecule were obtained, the more preorganized being stable in protic solvents. With a rigid C3-symmetrical cap, chiral guest recognition in the calixarene cavity resulted. A large tris-acidic partner gave a unique molecular ditopic receptor that is able to simultaneously accommodate two neutral molecules in two distinct hydrophobic cavities with different binding processes. © 2007 Elsevier Ltd. All rights reserved.