Ekkehard Geidel, Knut Krause, Horst Förster and Frank Bauer
The Raman, mid- and far-IR spectra of NaY and 18O-labelled NaY are presented and compared with spectra calculated by a shell model and by a simple valence force field. The calculations of the kinetic-energy distribution (KED) and the potential-energy distribution (PED) were used to assign experimentally observed bands to normal modes.