Isotope effects in vibrational excitation and dissociative electron attachment of DCl and DBr

Article

Isotope effects in vibrational excitation and dissociative electron attachment of DCl and DBr

Horáček, J.; Čížek, M.; Kolorenč, P.; Domcke, W.

Eur. Phys. J. D 35(0), 225-230 (2005)

Abstract

The results of calculations of vibrational excitation and dissociative electron attachment cross-sections of DCl and DBr are reported. The calculations are based on the nonlocal resonance model for electron-HCl/HBr scattering. The cross-sections for many initial rovibrational target states were calculated both for the hydrogenated and the deuterated compounds. The calculations reveal an unexpected result: the vibrational excitation cross-section of the deuterated molecule may in some cases be (significantly) larger than that of the hydrogenated compound. This effect is observed when the target molecule is initially excited to a vibrational state the energy of which is close to the threshold of dissociative attachment. Rotational excitation of the target molecule plays a similar role. Isotope effects in dissociative electron attachment are also discussed.

Institute authors

Supported by

GAAV IAA100400501 — Dynamika excitovaných molekulárních systémů

BibTeX

@article{UTF111,
  author        = {Horáček, J. and Čížek, M. and Kolorenč, P. and Domcke, W.},
  title         = {{Isotope effects in vibrational excitation and dissociative electron attachment of DCl and DBr}},
  journal       = {Eur. Phys. J. D},
  volume        = {35},
  number        = {0},
  pages         = {225-230},
  year          = {2005},
  doi           = {10.1140/epjd/e2005-00196-3},
  url           = {http://www.springerlink.com/content/j87034w48mr75258/?p=a382862aadbc46f0b9d7eeafd8c3c2c7\&pi=0},
}