Axilrod-Teller potential
Encyclopedia
The Axilrod–Teller potential is a three-body potential
Potential
*In linguistics, the potential mood*The mathematical study of potentials is known as potential theory; it is the study of harmonic functions on manifolds...

 that results from a third-order perturbation correction to the attractive London dispersion interactions
Van der Waals force
In physical chemistry, the van der Waals force , named after Dutch scientist Johannes Diderik van der Waals, is the sum of the attractive or repulsive forces between molecules other than those due to covalent bonds or to the electrostatic interaction of ions with one another or with neutral...

(instantaneous induced dipole-induced dipole)


where is the distance between atoms and , and is the angle between the vectors
and . The coefficient is positive and of the order , where is the ionization energy and is the mean atomic polarizability; the exact value of depends on the magnitudes of the dipole matrix elements and on the energies of the orbitals.
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