Photochemistry of adsorbed molecules. V. Ultraviolet photodissociation of OCS on LiF(001)

Article abstract of DOI:10.1063/1.458795

Dynamical studies of the UV photochemistry of submonolayer coverages of OCS physisorbed on 116 K LiF(001) are presented.Following pulsed ultraviolet laser irradiation (λ 222 nm), translational energy and angular distributions were obtained for photolysis products by angle-resolved time-of-flight mass spectrometry.Photolysis of adsorbates gave rise to distributions which differed markedly from gas phase photodissociation.Energetic sulphur and CO fragments were detected for coverages <*> 10^-5 monolayers.The cross section for photolysis in the adsorbed state was enhanced 10³-10⁴ x relative to the gas phase.The dynamics for these photoprocesses were found to vary with adsorbate coverage, indicative of a catalytic influence of the surface on the photochemistry.

Full text of DOI:10.1063/1.458795

Photochemistry of adsorbed molecules. V. Ultraviolet photodissociation of OCS on
LiF(001)
K. Leggett, J. C. Polanyi, and P. A. Young
Citation: The Journal of Chemical Physics 93, 3645 (1990); doi: 10.1063/1.458795
View online: http://dx.doi.org/10.1063/1.458795
View Table of Contents: http://scitation.aip.org/content/aip/journal/jcp/93/5?ver=pdfcov
Published by the AIP Publishing
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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This article is copyrighted as indicated in the article. Reuse of AIP content is subject to the terms at: http://scitation.aip.org/termsconditions. Downloaded to IP:
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