The Relevance of Lewis Acid-base Chemistry to Surface Interactions
نویسنده
چکیده
This overview paper summarizes the current status of the Lewis acid-base or generalized donor-acceptor concepts and their application to solubility theory and related problems in the fields of surface and colloid chemistry. Simple second-order perturbation theory is then used to evaluate the pros and cons of various empirical treatments or Lewis acid-base strengths currently found in the literature and to clarify both their limitations and their relation to currently popular empirical approaches to surface and solubility phenomena. 1. The Lewis Concepts. The Lewis acid-base concepts were first formulated by the American physical chemist G. N. Lewis in 19231, 2 and define an acid as any species (molecule, ion, or nonmolecular solid) capable of accepting a share in a pair of electrons during the course of a chemical reaction and a base as any species (molecule, ion, or nonmolecular solid) capable of donating that share. Neutralization becomes, in turn, simple coordinate or heterogenic bond formation between the acid and base:
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