Proton N.M.R.-spectroscopic studies of substituted aromatic compounds

Abstract

Para-hydrogen chemical shifts in a series of monosubstituted benzene derivatives have been shown to depend linearly on the π-electron density variations on the adjacent carbon atom calculated by a non-empirical Hückel LCAO method. Attention is drawn to the fact that important modifications of ring-current intensity occur when a substituent is introduced in the benzene molecule. © 1967 Taylor and Francis Group, LLC.SCOPUS: ar.jinfo:eu-repo/semantics/publishe