Kinetics of the reactions of N2H+, N4+, and N3+ with H2O in the gas phase

Abstract

The flowing afterglow technique has been used to study the bimolecular reactions of water vapor with three nitrogen‐containing ions, N₂H⁺, ${\mathrm{N}}_4^{+}$ , and ${\mathrm{N}}_3^{+}$ at 296°K. The N₂H⁺ undergoes a fast proton transfer reaction with water (k=2.77×10⁻⁹ cm³ sec⁻¹), ${\mathrm{N}}_4^{+}$ rapidly charge transfers with water (k=1.88×10⁻⁹ cm³ sec⁻¹), while ${\mathrm{N}}_3^{+}$ participates in a slower rearrangement reaction (k=2.57×10⁻¹⁰ cm³ sec⁻¹) to form the product ion H₂NO⁺. The experimental technique is briefly reviewed, the production processes of the reactant ions are described, and the data are discussed and compared with other experimental results.