Role of OH radicals in the formation of oxygen molecules following vacuum ultraviolet photodissociation of amorphous solid water

Tetsuya Hama, Masaaki Yokoyama, Akihiro Yabushita, Masahiro Kawasaki

研究成果: Contribution to journalArticle査読

7 被引用数 (Scopus)

抄録

Photodesorption of O2 (X3g -) and O2 (a Δ1g) from amorphous solid water at 90 K has been studied following photoexcitation within the first absorption band at 157 nm. Time-of-flight and rotational spectra of O2 reveal the translational and internal energy distributions, from which production mechanisms are deduced. Exothermic and endothermic reactions of OH+O (3P) are proposed as plausible formation mechanisms for O 2 (X 3g- and a 1Δ g). To examine the contribution of the O ( 3P) +O (3P) recombination reaction to the O2 formation following 157 nm photolysis of amorphous solid water, O2 products following 193 nm photodissociation of SO2 adsorbed on amorphous solid water were also investigated.

本文言語英語
論文番号104504
ジャーナルJournal of Chemical Physics
133
10
DOI
出版ステータス出版済み - 9 14 2010
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

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