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Rate coefficients for O(1D) + H2, D2, HD reactions and H atom yield in O(1D) + HD reaction

✍ Scribed by Ranajit K. Talukdar; A.R. Ravishankara

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 520 KB
Volume: 253
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(96)00203-5

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✦ Synopsis

Rate coefficients, in units of 10-~0 cm 3 molecule-~ s-~, for the O(~D) reactions with H2, D 2 and HD at 298 K were determined to be 1.2 ___ 0.1, 1.1 + 0.1, and 1.2 + 0.1, respectively. The H atom yield in the O(~ D) + HD reaction, relative to that in the O(ID) + H 2 reaction, was measured to be 0.57 _ 0.03. The temporal profiles of O(3p) and H(2S), following pulsed photolytic generation of O(~D), were measured using cw resonance fluorescence detection to determine the rate coefficients and product yield.

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