Primary Amine Confinement at the Interface of Grafted Calixarenes and Silica

Abstract

A general approach for functional group confinement is demonstrated for primary amines and relies on the formation of a pocket in the shape of an inverted wedge at the interface between grafted monosubstituted calix-[4]-arenes and silica surface. Shape-selective binding of salicylaldehyde to the confined amine materials is demonstrated.