Quantum and classical dynamics of HCl+/MgO(001) photodissociation

Hua Guo; Tamar Seideman

doi:10.1117/12.221496

25 September 1995 Quantum and classical dynamics of HCl+/MgO(001) photodissociation

Hua Guo, Tamar Seideman

Proceedings Volume 2547, Laser Techniques for Surface Science II; (1995) https://doi.org/10.1117/12.221496
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

The photodissociation dynamics of a molecular ion (HCl⁺) adsorbed on a single crystal insulator surface (MgO(001)) is investigated theoretically in a 2D dimensional model. Both quantum and classical methods have been used to study the dynamics. The structureless absorption spectra of the adsorbate are found to shift relative to their gas phase counterparts, due to the (de)stabilization of the excited states. The angular distributions of the desorbed hydrogen fragments are highly structured, in sharp contrast to the smooth, gaussian-like distributions obtained for the corresponding gas phase dissociation. A classical deflection function is introduced to illustrate the influence of rainbow scattering on the final hydrogen angular distributions.

Citation Download Citation

Hua Guo and Tamar Seideman "Quantum and classical dynamics of HCl+/MgO(001) photodissociation", Proc. SPIE 2547, Laser Techniques for Surface Science II, (25 September 1995); https://doi.org/10.1117/12.221496

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