| Abstract: | A complete infrared study of the mixed crystal system of AgNO3 and NaNO3 is carried out in the region 400–4000 cm?1. The study includes internal fundamental normal vibrations of the NO?3 ion in the ordered and disordered phases of AgNO3 at different values of the sodium concentration, the I.R. spectra, spectral band shape intensities, and frequencies of the internal modes as functions of the sodium ion concentration. Special attention is paid to bending mode, combination mode, asymmetric stretching mode, and over-tone. The rotational energy barrier is determined at different concentrations of the sodium ions in the system. |
