Electric moments electrostatic interaction integrals

Note that this differs in two respects from earlief " treatments of electrostatics. First, one usually expresses the electrostatic interaction with respect to two unpolarized wavefunctions whereas equation (42) is expressed in terms of the actual distorted forms of the fragment wavefunctions within the complex. The AEes component therefore contains residual polarization contributions [beyond those included in A def(A). A def(B)1 that arise from the interaction of permanent electric moments of one fragment with the induced moments of the other. Second, earlier treatments generally evaluated an integral such as equation (42) using a Hartree-product of fragment wavefunc-... 

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