On the Reasons of Assymetricity of the Shape of Contour of Vibrational Line ν1(A 1) in Raman Spectra of LiNO3 Melt

The reasons leading to the asymmetry of the shape of the ν1(А1) contour of the nitrate ion in the spectra of lithium nitrate melts were analyzed. It was shown that the application of the Rothschild–Yao theory gives the best agreement between the calculated and experimental spectra. However, the physical meaning of some of parameters given in this theory is not clear. The asymmetry of shape of the vibration contour ν1(A1) of the nitrate ion for a lithium nitrate melt, can be caused by the inhomogeneity of local structure caused by different rates of dynamic interactions between the particles of system.