Molecular polarisability. Hyperconjugative effects in t-butylbenzene and in benzotrichloride
Abstract
Dipole moments and molar Kerr constants are reported for the molecules p-XC6H4But(X = H, Me, Br, NO2, or But) and p-XC6H4CCl3(X = Cl, or CCl3). The data are analysed to provide evidence for electronic interactions between the various substituent groups and the aromatic π-electron system.