AbstractThe intensities of the Raman lines corresponding to the intramolecular stretching modes of (HCl)2have been calculated from an SCF wavefunction. It is found that the derivatives of the mean polarizability and of the polarizability anisotropy of the proton donor unit are enhanced, while the corresponding properties of the proton acceptor unit remain unaffected. The theoretical intensity ratio is calculated to be 1.69 in qualitative agreement with experiment.