Improved predictions of equilibrium properties for spin-polarized atomic nitrogen

Abstract

A reanalysis of several equilibrium properties of electron spin-polarized atomic nitrogen is presented, utilizing parameters from a new and improved theoretical calculation of the 7Σ+u state of molecular nitrogen which represents the interaction potential between two such spin-polarized atoms. The new potential well is significantly more shallow than previously assumed, resulting in substantial changes in the critical and triple point pressures and temperatures as calculated in the quantum theorem of corresponding states framework. The corresponding molar volumes are only slightly affected because the hard sphere radius is unchanged. Bulk samples are not expected to exhibit significant quantum behavior. Earlier conclusions on the relative stability of this material to single spin-flip processes remain unaltered.