A localized π-bond model for the calculation of molar magnetic susceptibilities and anisotropies of aromatic hydrocarbons

Abstract

A simple model is described for the estimation of molar magnetic susceptibilities, and the anisotropy in this property, of aromatic hydrocarbons. The model, which assumes a localized bond structure for the π electrons (as opposed to the traditional ring-current concept), produces good agreement with experiment. Certain consequences of a conceptual nature are discussed.