Buydens L, Coomans D, Vanbelle M, Massart D L, Vanden Driessche R
J Pharm Sci. 1983 Nov;72(11):1327-9. doi: 10.1002/jps.2600721122.
The different molecular connectivity indices were considered as to their capacity for describing GC retention indices of a data set consisting of molecules of different chemical families. 1 kappa describes best the chromatographic behavior on nonpolar stationary phases, whereas 3 kappa p in combination with an electronic parameter (sigma) yields the best results when using the polar stationary phases.
