Abstract
A formalism to describe the vibrational excitation of molecules via resonances is presented. For the limiting cases of short and long lifetime of the negative ion the excitation probability can be calculated using a golden rule expression and a simple Hamiltonian. The intensity distribution of the electron energy loss spectrum is expressed in terms of electron-vibration coupling constants which depend on the lifetime of the negative ion. Spectra for resonant scattering on benzene-d6 are calculated and good agreement with experiment is obtained.
Similar content being viewed by others
References
For a review of the experimental and theoretical aspects see:
Bardsley, J.N., Mandl, F.: Rept. Prog. Phys.31, 471 (1968)
Taylor, H.S.: Adv. Chem. Phys.18, 91 (1970)
Herzenberg, A.: in Methods and Problems of Theoretical Physics,(ed. J.E. Bowcock) p. 131. Amsterdam: North-Holland 1970
Schulz, G.J.: Rev. Mod. Phys.45, 423 (1973)
Sanche, L., Schulz, G.J.: J. Chem. Phys.58, 479 (1973)
Nenner, I., Schulz, G.J.: J. Chem. Phys.62, 1747 (1975)
Wong, S.F., Schulz, G.J.: Phys. Rev. Letters35, 1429 (1975)
Cederbaum, L.S., Domcke, W.: J. Chem. Phys.60, 2878 (1974)
Diercksen, G.H.F, Kraemer, W.P.: MUNICH, Molecular Program System, Reference Manual, Special Technical Report, Max- Planck-Institut für Physik and Astrophysik, unpublished
The force field of Whiffen, D.H.: Phil. Trans. Roy. Soc. A248, 131 (1955), has been used to construct the normal coordinates
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Cederbaum, L.S., Domcke, W. Vibrational excitation of molecules by resonant electron scattering: Theory and application to benzene. Z Physik A 277, 221–224 (1976). https://doi.org/10.1007/BF01415596
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF01415596