Product energy disposal in the reaction of N+(3P) with O2(X 3Σ)

Abstract
The reaction of N+(3P) with O2(X 3∑) has been studied using the technique of kinetic energy ion cyclotron resonance spectroscopy. The portion of reaction exoergicity channeled into product kinetic energy is measured and used to infer the relative distribution of product internal energy. Both the atom transfer reaction, producing NO+, and the charge transfer reaction, producing O+2, have been studied. The combination of the present kinetic energy measurements with recent low resolution spectroscopic studies of the NO+ atom transfer product permit a detailed analysis of the reaction pathways. Through such an analysis both the ionic product state distribution and the neutral atomic product distribution are determined, demonstrating substantial vibrational and electronic excitation in the ionic and neutral products, respectively. The charge transfer reaction channel, however, produces predominantly ground state product N atom and mild vibrational excitation in the O+2 product.