✦ LIBER ✦

Reaction dynamics of H+O2 at 1.6 eV collision energy

✍ Scribed by Michael J. Bronikowski; Rong Zhang; David J. Rakestraw; Richard N. Zare

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 641 KB
Volume: 156
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87071-x

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✦ Synopsis

The hot H atom reaction, H+O>-OH t 0, has been studied at a center-of-mass collision energy of 1.6 eV. H atoms were generated by 266 nm photolysis of HI in a mixture of HI and O2 at 293 K. The OH product was probed by laser-induced fluorescence and the nascent OH vibrational, rotational, and fine structure distributions were determined. The OH (o=O)/OH (v= 1) vibrational branching ratio was measured to be 1.72 k 0.09. Our data suggest that the H +O, reaction at this collision energy proceeds via two competing mechanisms: reaction involving a long-lived complex and direct reaction.

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