Dissociative electron attachment to molecules in the gas phase and in rare gas solids

Authors

Paul Burrow, University of Nebraska - LincolnFollow
Kayvan Aflatooni, University of Nebraska-LincolnFollow

Date of this Version

4-1-2002

Comments

Published by American Institute of Physics. J. Chem. Phys. 116, 5471 (2002). © 2002 American Institute of Physics. Permission to use. http://jcp.aip.org/.

Abstract

Measurements of dissociative electron attachment (DEA) cross sections in chloroalkanes and chlorofluoromethanes have shown strong correlations between the peak DEA cross sections and the vertical attachment energies (VAEs) of these compounds. We explore the extent to which these gas phase data can be used to predict such cross sections for molecules embedded within or on the surface of a Kr solid. Effective VAEs are computed that include polarization of the solid by the anion and effects due to electron motion in the lattice. Comparisons are made with recent surface and bulk measurements and show good agreement for CF₃Cl both within and on the surface. Satisfactory agreement is found for CH₃Cl in the bulk but not on the surface.