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Direct observation of ClO from chlorine nitrate photolysisChlorine nitrate photolysis has been investigated with the use of a molecular beam technique. Excitation at both 248 and 193 nanometers led to photodissociation by two pathways, ClONO2 yields ClO + NO2 and ClONO2 yields Cl + NO3, with comparable yields. This experiment provides a direct measurement of the ClO product channel and consequently raises the possibility of an analogous channel in ClO dimer photolysis. Photodissociation of the ClO dimer is a critical step in the catalytic cycle that is presumed to dominate polar stratospheric ozone destruction. A substantial yield of ClO would reduce the efficiency of this cycle.
Document ID
19930033738
Document Type
Reprint (Version printed in journal)
Authors
Minton, Timothy K. (JPL Pasadena, CA, United States)
Nelson, Christine M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Moore, Teresa A. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Okumura, Mitchio (California Inst. of Technology Pasadena, United States)
Date Acquired
August 15, 2013
Publication Date
November 20, 1992
Publication Information
Publication: Science
Volume: 258
Issue: 5086
ISSN: 0036-8075
Subject Category
INORGANIC AND PHYSICAL CHEMISTRY
Funding Number(s)
CONTRACT_GRANT: NAS7-918
CONTRACT_GRANT: NSF CHE-89-57243
Distribution Limits
Public
Copyright
Other