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Orientation in molecule-surface interactions

Lookup NU author(s): Professor Ken Snowdon


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The role of the orientation of a molecule in its interaction with a surface is examined for a number of cases. At first the determination of the static orientation of a molecule at the surface is discussed. A dependence of the orientation on state and coverage is found for O2 molecules adsorbed on Ag(110). The orientation dependence of NO in chemisorption, displacement reactions, and chemical reactions is discussed. Rotational excitation of NO in collisions with surfaces is shown to exhibit a strong orientation dependence. Dissociative chemisorption of hydrogen molecules is found to depend on the initial orientation of the molecule. Finally, in dissociative collisions of fast molecules with surfaces the role of the initial orientation is examined and the final orientation of the molecular axis is determined. Several mechanisms for molecular dissociation are discussed.

Publication metadata

Author(s): Heinzmann U, Holloway S, Kleyn AW, Palmer RE, Snowdon KJ

Publication type: Review

Publication status: Published

Journal: Journal of Physics Condensed Matter

Year: 1996

Volume: 8

Issue: 19

Pages: 3245-3269

Print publication date: 06/05/1996

ISSN (print): 0953-8984

ISSN (electronic): 1361-648X


DOI: 10.1088/0953-8984/8/19/002