Article révisé par les pairs
Résumé : The solvent effect on the ν(CX) vibrations of the chloro-, bromo- and iodocyclohexanes has been studied. With the aid of the H.B.W. relation, it is possible to make correlations between the solvent effect, polarity and axial of equatorial orientation of the C-X bond. On the other hand, the use of solvents mixtures gives continuous but non linear curves in K.B.M. diagrams. This behaviour is discussed. © 1964.