Bond-Breakage Mechanism in the Predissociation of the à State of N2O+: New Information from High Resolution Spectroscopy

Abstract

A recent study of high-resolution laser spectroscopy in a fast ${\mathrm{N}}_2$ ${\mathrm{O}}^{+}$ beam indicates that the hyperfine structure of the $\tilde{A}\mathrm{}\left(100\right)\mathrm{}$ state is mainly due to Fermi contact interaction on the outer nitrogen nucleus. This new spectroscopic result is crucial for the interpretation of the laser predissociation of isotopically substituted ${\mathrm{N}}_2$ ${\mathrm{O}}^{+}$ with a tandem mass spectrometer. Under such circumstances the fast-ion-beam laser-spectroscopy method yields new information on the bond-breakage mechanism during predissociation.