ORIENTATION INTERACTIONS

Orientation interactions are
weak interactions from the
van der Waals group of interactions. They are conditioned by electrostatic interactions between permanent
dipoles (multipoles). The energy of such interaction is equal to:

, where
*k* is the Boltzman constant,
*T* is the absolute temperature,
*p1*, *p2* are dipole moments of the first and the second dipole correspondingly,
*r* is the distance between the dipoles.