Molecular Solids Definition and Examples

A molecular solid is a type of solid in which molecules are held together by van der Waals forces rather than by ionic or covalent bonds. Properties The dipole forces are weaker than ionic or covalent bonds. The relatively weak intermolecular forces cause molecular solids to have relatively low melting points, typically less than 300 degrees Celsius. Molecular solids tend to dissolve in organic solvents. Most molecular solids are relatively soft electrical insulators with low density. Examples Water iceSolid carbon dioxideSucrose, or table sugarHydrocarbonsFullerenesSulfurWhite phosphorusYellow arsenicSolid halogensHalogen compound with hydrogen (e.g., HCl)Pnictogens (N2)Light chalcogens (O2)