Ionic bonds do not involve van der Waals forces.
Ionic bonds are formed between ions of opposite charges, typically a positively charged cation and a negatively charged anion. These ions are held together by strong electrostatic attractions between the oppositely charged species. The transfer of electrons from one atom to another leads to the formation of ions and the establishment of an ionic bond.
Van der Waals forces, on the other hand, refer to relatively weak intermolecular forces that exist between neutral molecules or atoms. These forces arise due to temporary fluctuations in electron distribution, creating temporary dipoles. Van der Waals forces include London dispersion forces (arising from instantaneous dipoles), dipole-dipole interactions (arising from permanent dipoles), and hydrogen bonding (a specific type of dipole-dipole interaction involving hydrogen).
Ionic bonds are much stronger than van der Waals forces due to the strong electrostatic interactions involved. Van der Waals forces are generally weaker and are typically observed between molecules or atoms that do not form ionic or covalent bonds.