Abstract
In the portions of the hypersurface of the interaction energy between two molecules where polarization may be considered inessential to the understanding of the physical phenomenon under investigation, the interaction hypersurface may be well-approximated by electrostatic interactions. This approximation must be carefully controlled since its validity is not always well justified. In certain cases there may be a difference in exchange repulsion in a series of similar but not very closely related molecules approaching a substrate; however, such cases are the exception. The electrostatic potential arising from molecule A is completely defined at every point of the space if one knows the charge distribution (electronic and nuclear) of the molecule.1,2 When the electrostatic approximation is valid, electrostatic potential contour maps indicate vividly the potential field around a molecule as seen by an approaching reagent or a receptor site.
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Kaufman, J.J., Hariharan, P.C., Tobin, F.L., Petrongolo, C. (1981). Electrostatic Molecular Potential Contour Maps from Ab-initio Calculations. 1. Biologically Significant Molecules. 2. Mechanism of Cationic Polymerization. In: Politzer, P., Truhlar, D.G. (eds) Chemical Applications of Atomic and Molecular Electrostatic Potentials. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-9634-6_15
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