THE HAMILTONIAN OF THE INDUCTION EFFECT IN INFRARED-SPECTRA OF SF6 CLUSTERS

The Hamiltonian of the induction effect (dipole-induced dipole interac tion) in the model proposed by Snels and Reuss is corrected. This mode l was proposed for the calculation of the frequency shift and transiti on strength of the IR spectra of clusters of highly symmetric molecule s such as (SF6)(n), (SiF4)(n) and (SM(4))(n). Disagreement between the observed frequency shifts and the calculated results obtained using t his model for (SF6)(3) and (SF6)(4) was found to be caused by the inco rrect Hamiltonian of the dipole-induced dipole interaction. The calcul ated results for (SF6)(3) and (SF6)(4) with the corrected Hamiltonian agree with the observed spectra.