Formation mechanisms of oxygen atoms in the O(3PJ) state from the 157 nm photoirradiation of amorphous water ice at 90 K

Hama, Tetsuya; Yabushita, Akihiro; Yokoyama, Masaaki; Kawasaki, Masahiro; Watanabe, Naoki

Formation mechanisms of oxygen atoms in the O(3PJ) state from the 157 nm photoirradiation of amorphous water ice at 90 K

Hama, Tetsuya; Yabushita, Akihiro; Yokoyama, Masaaki et al.

Journal of Chemical Physics, 2009, 131(11), 114511

Permalink : https://hdl.handle.net/2115/39511

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アクセス権	open access
URI	https://hdl.handle.net/2115/39511
タイトル	Formation mechanisms of oxygen atoms in the O(3PJ) 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
著者名 Hama, Tetsuya
著者名 Yabushita, Akihiro
著者名 Yokoyama, Masaaki
著者名 Kawasaki, Masahiro
e-Rad_Researcher 50271531 著者名 Watanabe, Naoki
言語	英語
キーワード	amorphous state
	desorption
	ground states
	ice
	oxygen
	photoionisation
	photolysis
	reaction kinetics
	translational states
	ultraviolet radiation effects
発行日	2009-09-21
出版者	American Institute of Physics
収録物名	Journal of Chemical Physics
巻(号)	131(11)
ページ	114511
抄録	Desorption of ground state O(3P_[J= 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(3PJ) 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(3PJ) formation mechanisms. © 2009 American Institute of Physics.
資源タイプ	学術雑誌論文
出版タイプ	Version of Record
権利情報	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 J. Chem. Phys. 131, 114511 (2009) and may be found at https://dx.doi.org/10.1063/1.3194797
PISSN	0021-9606
関連情報 (isIdenticalTo)	出版社版DOI https://doi.org/10.1063/1.3194797