Interactions of H 2 O molecules in ice II. Interaction energies of H 2 O molecules in ice

Abstract

The energy of interaction of H 2 O molecules in ice is calculated by representing each molecule as a series of multipoles. This energy is found to increase when the mutual polarization of the molecules is taken into account. It is also found to depend significantly upon interactions of a molecule with its second and further neighbours. The interaction energy of molecules in the cubic form of ice is found to be essentially the same as that of molecules in the ordinary hexagonal form.