# Intermolecular Forces for Ionic Compound?

So in class we have learned London dispersion, dipole-dipole, ion-dipole and hydrogen bonding for intermolecular forces. Our teacher always uses covalent molecules as examples. So I was wondering which intermolecular forces ionic bonds have, if so, how are they formed?

• Ionic bonds are the product of Coulombic interactions within the ionic compound. Intermolecular forces means 'between molecules' and (unfortunately), in this case, extends to ion/dipoles. Oct 7, 2015 at 21:23
• It would be only natural to continue the series "dipole-dipole, ion-dipole" with ion-ion interaction, which is precisely the same as ionic bond. Oct 7, 2015 at 21:25

$$F = \frac{1}{4\pi\varepsilon_0}\frac{q_1q_2}{r^2}$$
where $q_1$ and $q_2$ are the charges on the two ions and $r$ is the distance between them. In a completely ionic bond, $q_1$ and $q_2$ are multiples of the elementary charge, $e = 1.602 \times 10^{-19} \text{ C}$; however, no bond is completely ionic.