ABSTRACT

Beyond molecular chemistry based on the covalent bond, supramolecular chemistry has developed as the chemistry of the entities generated via intermolecular noncovalent interactions [1-3]. The objects of supramolecular chemistry are thus defined by the nature of the molecular components and on the other hand by the type of interactions that hold them together (hydrogen bonding, electrostatic and donor-acceptor interactions, metal ion coordination, etc.). They may be divided into two broad, partially overlapping classes: supermolecules, well-defined oligomolecular species resulting from the specific intermolecular association of a few components, and polymolecular assemblies, formed by the spontaneous association of a large number of components into a large supramolecular architecture or a specific phase having more or less well-defined microscopic organization and macroscopic characteristics depending on its nature (films, layers, membranes, vesicles, micelles, mesophases, surfaces, solids, etc.).