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Yields of O2(1Σg+) and O2(1Δg) in the H + O2 reaction system, and the quenching of O2(1Σg+) by atomic hydrogen

✍ Scribed by Diane V. Michelangeli; Kuang-Yul Choo; Ming-Taun Leu

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
998 KB
Volume
20
Category
Article
ISSN
0538-8066

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✦ Synopsis

The generation of metastable O, ('Xg+) and Oz('Ag) in the H + 0, system of reactions was studied by the flow discharge chemiluminescence detection method. In addition to the Oz('Pg') and Oz('

, H0,(2A~oo) + H02(2AlohO), H02(zA~o,) + HO,(zA~oo), and H Oz(2A~oo) --+ H0,(2A&,o) emissions were detected in the H + 0, system. The rate constants for the quenching of 02('Zg+) by H and Hz were determined to be (5.1 ? 1.4) x and (7.1 C 0.1) x cm3 s-', respectively. An upper limit for the branching ratio to produce O,('Pg+) by the H + H 0 2 reaction was calculated to be 2.1%. The contributions from other reactions producing singlet oxygen were investigated.

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