Ion—Molecule Reactions in Gaseous Ammonia

Abstract

Ion—molecule reactions in gaseous ammonia have been studied up to 0.065 Torr in the ion source of the mass spectrometer. Besides the primary ions NH₃⁺, NH₂⁺, NH⁺, N⁺, the following secondary ions NH₄⁺, N₂H₅⁺, N₂H₄⁺, N₂H₃⁺, N₂H₂⁺, and N₂H⁺ have been observed. Appearance‐potential data and pressure‐dependence studies have allowed the parent—daughter relationship and the cross sections of the pertinent reactions to be determined.