Inverted Population in Dissociation of CsBr Molecules

Publisher Website
Google Scholar
Abstract
The dissociation of diatomic CsBr molecules in a shock wave has been studied by time‐resolved absorption spectroscopy. Absorption by neutral cesium atoms increases monotonically toward its equilibrium value as dissociation proceeds, but under a wide range of conditions, absorption by Br− ions goes rapidly to a maximum and then falls to its equilibrium value. The results show that under some conditions, the principal primary products of dissociation are ions, rather than atoms or a thermally equilibrated mixture of atoms and ions.