Resonance interaction between SF6 and NF3 coadsorbed on ZnO surface

Abstract

Manifestations of resonance dipole-dipole (RDD) interaction in IR spectra of 34SF6 and NF3 molecules coadsorbed on ZnO are considered. The obtained results show that for NF3, as for34SF6, at high surface coverages, the intense bands of adsorbed molecules are more affected by RDD interaction than by the influence of surface sites. As for 34SF6, the band ν3 of adsorbed NF3 splits into two components corresponding to the collective vibrations of the layer with the change of the total dipole moment parallel or perpendicular to the surface. The spectra of NF3 coadsorbed with 34SF6 on ZnO are not the superimposed spectra of individual adsorbates, thus demonstrating RDD interaction between different molecules in the adsorbed state.