Supramolecular chemistry is the branch of science that focuses on complex systems composed of two or more discrete molecules. Unlike traditional chemistry, which studies the strong covalent bonds that hold individual atoms together within a molecule, supramolecular chemistry examines the weaker, reversible non-covalent interactions between different molecules, such as hydrogen bonds, van der Waals forces, hydrophobic interactions, and electrostatic effects.

The field is driven by a few fundamental principles:

• Molecular Recognition: This refers to the highly specific and selective binding between a "host" molecule and a "guest" molecule. Often compared to a "lock and key" mechanism, successful recognition requires complementarity, meaning the interacting molecules must perfectly match in terms of shape, size, and chemical properti ...