Molecular crystals

Molecular crystals are solids made up of individual molecules held together by relatively weak forces such as hydrogen bonds, van der Waals forces, or dipole-dipole interactions. Unlike ionic or metallic crystals, their molecules retain their identity within the solid. This arrangement results in crystals that are often soft, have lower melting points, and can sometimes dissolve easily in liquids. Examples include substances like sugar, ice, and caffeine. The unique properties of molecular crystals come from these intermolecular forces, influencing their stability, solubility, and physical characteristics.