Correlation of Excess Energies of Dissociative Electron Attachment Processes with the Translational Energies of Their Products

Abstract

Appearance potentials and translational energies of the products resulting from several dissociative electron capture processes have been measured. Excess energies were determined for each process from the measured appearance potentials and known ground-state heats of formation of the products and reactants. As with positive ions, the results were found to agree with the predictions of classical statistical theory. Application of the method is demonstrated in determination of the electron affinity of radicals.