Photodissociation of a HCl molecule adsorbed on ice at T = 210 K

This theoretical work concerns the study of the photodissociation of a HCl molecule adsorbed on an ice surface at T = 210 K. Temperature induced disorder is taken into account by a statistics over several configurations extracted from a classical molecular dynamics (MD) simulation. For each configur...

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Veröffentlicht in:Surface science 2007-07, Vol.601 (14), p.3034-3041
Hauptverfasser: Woittequand, S., Toubin, C., Monnerville, M., Pouilly, B., Briquez, S., Picaud, S.
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container_end_page 3041
container_issue 14
container_start_page 3034
container_title Surface science
container_volume 601
creator Woittequand, S.
Toubin, C.
Monnerville, M.
Pouilly, B.
Briquez, S.
Picaud, S.
description This theoretical work concerns the study of the photodissociation of a HCl molecule adsorbed on an ice surface at T = 210 K. Temperature induced disorder is taken into account by a statistics over several configurations extracted from a classical molecular dynamics (MD) simulation. For each configuration, 3D quantum dynamics of the hydrogen photofragment is investigated using the multi-configuration time-dependent Hartree (MCTDH) method. The absorption spectrum at 210 K is obtained by an average over the spectra calculated for each configuration. The surface disorder results in a smoothing of the interferences structures that appear for some given orientations of HCl depending on the surrounding water molecules orientations.
doi_str_mv 10.1016/j.susc.2007.05.006
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subjects Absorption spectrum
Adsorption
Atmospheric and Oceanic Physics
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Condensed matter: structure, mechanical and thermal properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
HCl
Ice surface
MCTDH
Molecular dynamics
Photodissociation
Physics
Temperature
Wave packet
title Photodissociation of a HCl molecule adsorbed on ice at T = 210 K
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