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タイトル: Formation mechanisms of oxygen atoms in the O(P-3(J)) state from the 157 nm photoirradiation of amorphous water ice at 90 K
著者: Hama, Tetsuya
Yabushita, Akihiro
Yokoyama, Masaaki
Kawasaki, Masahiro
Watanabe, Naoki
発行日: Sep-2009
出版者: American Institute of Physics
誌名: JOURNAL OF CHEMICAL PHYSICS
巻: 131
号: 11
論文番号: 114511
抄録: Desorption of ground state O(3P3=2, 1, 0) atoms following the vacuum ultraviolet photolysis of water ice in the first absorption band was directly measured with resonance-enhanced multiphoton ionization (REMPI) method. Based on their translational energy distributions and evolution behavior, two different formation mechanisms are proposed: One is exothermic recombination reaction of OH radicals, OH+OH→H2O+O(3P3) and the other is the photodissociation of OH radicals on the surface of amorphous solid water. The translational and internal energy distributions of OH radicals as well as the evolution behavior were also measured by REMPI to elucidate the roles of H2O2 and OH in the O(3P3) formation mechanisms.
著作権等: Copyright 2009 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in JOURNAL OF CHEMICAL PHYSICS 131, 114511 (2009) and may be found at http://link.aip.org/link/JCPSA6/v131/i11/p114511/s1
URI: http://hdl.handle.net/2433/109882
DOI(出版社版): 10.1063/1.3194797
PubMed ID: 19778133
関連リンク: http://link.aip.org/link/JCPSA6/v131/i11/p114511/s1
出現コレクション:学術雑誌掲載論文等

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