Perspective on "Density functional approach to the frontier-electron theory of chemical reactivity" - Parr RG, Yang W (1984) J Am Chem Soc 106: 4049-4050

The Fukui function, f((r) over right arrow), was proposed as a tool for ded ucing the relative reactivity of different positions in a molecule by Parr and Yang in 1984. Herein we sketch the theory of the Fukui function, with s pecial emphasis on its logical motivation, interpretation. qualitative char acteristics, and practical computation. We conclude with some words about t he Fukui function's extensions, limitations, and importance.