Guided ion beam studies of the reactions of Crn + (n=2-18) with O2: chromium cluster oxide and dioxide bond energies

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Publication Type Journal Article
School or College College of Science
Department Chemistry
Creator Armentrout, Peter B.
Other Author Griffin, James B.
Title Guided ion beam studies of the reactions of Crn + (n=2-18) with O2: chromium cluster oxide and dioxide bond energies
Date 1998
Description The kinetic energy dependence of the reactions of Crn+ (n=2-18) with O2 are studied in a guided ion beam mass spectrometer. A variety of CrmO2+, CrmO+, and Crm+ product ions, where m≤n, are observed, with the dioxide cluster ions dominating the products for all larger reactant cluster ions. Reaction efficiencies are near unity for all but the smallest clusters. The energy dependence of the product cross sections is analyzed in several different ways to determine thermochemistry for both the first and second oxygen atom binding to chromium cluster ions. These values show little dependence on cluster size for clusters larger than three atoms. The trends in this thermochemistry are discussed and compared to bulk phase oxidation values.
Type Text
Publisher American Institute of Physics (AIP)
Journal Title The Journal of Chemical Physics
Volume 108
Issue 19
First Page 8062
Last Page 8074
DOI 10.1063/1.476245
citatation_issn 219606
Subject Metal clusters; Chromium ions; Oxygen; Oxygen; Bond energies; Exothermic reactions
Subject LCSH Oxidation; Thermochemistry; Excited state chemistry
Language eng
Bibliographic Citation Griffin, J. B., & Armentrout, P. B. (1998). Guided ion beam studies of the reactions of Crn+ (n=2-18) with O2: chromium cluster oxide and dioxide bond energies. Journal of Chemical Physics, 108(19), 8062-74.
Rights Management (c)American Institute of Physics. The following article appeared in Griffin, J. B., & Armentrout, P. B., Journal of Chemical Physics, 108(19), 1998 and may be found at http://dx.doi.org/10.1063/1.476245
Format Medium application/pdf
Format Extent 60,692 bytes
Identifier ir-main,8101
ARK ark:/87278/s6sf3dkv
Setname ir_uspace
ID 704917
Reference URL https://collections.lib.utah.edu/ark:/87278/s6sf3dkv
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