Bond-selected bimolecular chemistry: H+HOD(4. nu. sub OH ) r arrow OD+H sub 2

Journal Article · Tue May 15 00:00:00 EDT 1990 · Journal of Chemical Physics; (USA)

DOI:https://doi.org/10.1063/1.458312· OSTI ID:7151651

Sinha, A; Hsiao, M C; Crim, F F ^[1]

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1. Department of Chemistry, University of Wisconsin-Madison, Madison, Wisconsin 53706 (USA)

The reaction of HOD containing four quanta of O--H bond stretching vibration with H atoms produces OD fragments almost exclusively. Vibrational overtone excitation prepares HOD(4{nu}{sub OH}) that reacts with H atoms formed in a microwave discharge. The endothermic reaction of water with hydrogen atoms does not occur for ground vibrational state water but proceeds at roughly the gas kinetic collision rate for the vibrationally excited molecule. The production of OD fragments from HOD(4{nu}{sub OH}) in the reaction is at least two orders of magnitude more efficient than the production of OH, indicating very selective reaction of the vibrationally excited bond.

• OSTI ID: 7151651
• Journal Information: Journal of Chemical Physics; (USA), Vol. 92:10; ISSN 0021-9606
• Country of Publication: United States
• Language: English

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37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
HYDROGEN
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HYDROXYL RADICALS
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ATOM-MOLECULE COLLISIONS
DEUTERIUM COMPOUNDS
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400201* - Chemical & Physicochemical Properties