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Absolute reactive cross section and oh product state distribution for the reaction H(1.86 eV)+CO2→OH+CO

✍ Scribed by A. Jacobs; M. Wahl; R. Weller; J. Wolfrum

Publisher: Elsevier Science
Year: 1989
Tongue: English
Weight: 543 KB
Volume: 158
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(89)87312-9

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✦ Synopsis

Photolysis of HCI with an ArF excimer laser at 193 nm yields H atoms with well-defined high translational energy ( I .86 eV) which react with CO2 to form OH and CO. The product OH radicals are detected by laser-induced fluorescence (LIF). From LIF spectra the nascent OH vibrational, rotational and tine-structure state distributions were determined. OH translational energy was obtained from line profiles. With a calibration method using HZ02 photolysis as a reference an absolute reactive cross section of 0.4 i 0.2 A' has been measured. The results are compared to previous experimental and theoretical work on H + CO2 at different collision energies.

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