Thermophysics Department, Odessa National Academy of Food Technologies, Odessa 65039, Ukraine pos Анотація:585
Received April 24, 2021, published online December 25, 2021
We applied the Mayer group expansion method for solids to predict locations of the polymorphic phase transitions lines between molecular ε and ζ phases, as well as between molecular ζ phase and polymeric cubicgauche-phase in highly compressed nitrogen solid. A simple potential model is proposed and its parameters are determined using known ab initio energy calculations for the molecular α phase. The results are compared with existing experimental data and the influence of intermolecular correlations on the temperature dependence of phase transition pressures is estimated.