Electric moments of molecules

Onsager L 1936. Electric Moments of Molecules in Liquids. Journal of the American Chemical Society 58 1486-1493. 

Onsager L (1936) Electric moments of molecules in liquids. J Am Chem Soc 58 1486-1493... 

The Dielectric Constants of Liquids and the Electric Moments of Molecules... 

Cavity and reaction field "robust" concepts. Perspective on "Electric moments of molecules in liquids" 196... 

The first readers of Lars Onsager s paper Electric moments of molecules in liquids , published in the August 1936 issue of the Journal of the American Chemical Society [1], probably considered it as a further contribution to a well-established line of research developed in the preceding decades. 

A, [A], A chemical potential of the component i, dipolar electrical moment of molecule i, generalized chemical potential. 

In Sections 4.1 and 4.2 we discussed the fact that the electric moments of molecules play an important role in the description of the intermolecular forces between two molecules separated by a large distance. Their contribution to the interaction energy is of purely classical, i.e. electrostatic nature. Here, we want to show now that also the contribution from quantum mechanical dispersion or London forces, i.e. the dispersion energy E, can be related to molecular properties of the two interacting molecules. In particular, we will see that it is related to the frequency-dependent polarizabilities, which is in line with the physical interpretation of the dispersion forces as arising from the interaction of induced dipole moments, which implies that both charge distributions are perturbed by their interaction. 

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