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Proceedings Paper

367-nm photochemistry of chlorine dioxide in and on amorphous ice
Author(s): L. D. Anderson; Jeffrey T. Roberts; Vicki H. Grassian
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Paper Abstract

The 367 nm photochemistry of chlorine dioxide, OClO, in and on thin films of amorphous ice at T equals 100 K has been investigated. Reflection Absorption Infrared Spectroscopy was used to probe the photoproducts formed in and on amorphous ice films upon 367 nm irradiation. Under dilute conditions, 367 nm irradiation of OClO in amorphous ice results in the formation of the isomer, chlorine superoxide, ClOO. Under more concentrated conditions, in which OClO clusters are presented, 367 nm irradiation OClO results in an additional photoproduct chloryl chloride, Cl-ClO2. Irradiation of OClO adsorbed on ice results in the formation of a single chlorine-containing photoproduct identified as Cl-ClO2. Similarities in the photoreactivity of concentrated amorphous ice films containing OClO clusters and OClO adsorbed on ice suggest that OClO clusters may play a role in ice surface photochemistry.

Paper Details

Date Published: 30 April 1998
PDF: 10 pages
Proc. SPIE 3272, Laser Techniques for Surface Science III, (30 April 1998); doi: 10.1117/12.307116
Show Author Affiliations
L. D. Anderson, Univ. of Iowa (United States)
Jeffrey T. Roberts, Univ. of Minnesota/Twin Cities (United States)
Vicki H. Grassian, Univ. of Iowa (United States)


Published in SPIE Proceedings Vol. 3272:
Laser Techniques for Surface Science III
Hai-Lung Dai; Hans-Joachim Freund, Editor(s)

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