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OH yields from the CH3CO+O-2 reaction using an internal standard

Carr, S.A., Baeza-Romero, M.T., Blitz, M.A., Pilling, M.J., Heard, D.E. and Seakins, P.W. (2007) OH yields from the CH3CO+O-2 reaction using an internal standard. Chemical Physics Letters, 445 (4 - 6). pp. 108-112. ISSN 0009-2614

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Abstract

Laser flash photolysis of CH3C(O)OH at 248 nm was used to create equal zero time yields of CH3CO and OH. The absolute OH yield from the CH3CO + O2 (+M) reaction was determined by following the OH temporal profile using the zero time OH concentration as an internal standard. The OH yield from CH3CO + O2 (+M) was observed to decrease with increasing pressure with an extrapolated zero pressure yield close to unity (1.1 ± 0.2, quoted uncertainties correspond to 95% confidence limits). The results are in quantitative agreement with those obtained from 248 nm acetone photolysis in the presence of O2.

Item Type: Article
Copyright, Publisher and Additional Information: © 2007 Elsevier Science BV. This is an author produced version of a paper published in Chemical Physics Letters. Uploaded in accordance with the publisher's self-archiving policy.
Institution: The University of Leeds
Academic Units: The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds)
Depositing User: Sherpa Assistant
Date Deposited: 18 Dec 2007 16:45
Last Modified: 08 Feb 2013 17:05
Published Version: http://dx.doi.org/10.1016/j.cplett.2007.07.099
Status: Published
Publisher: Elsevier Science BV
Refereed: Yes
Identification Number: 10.1016/j.cplett.2007.07.099
URI: http://eprints.whiterose.ac.uk/id/eprint/3542

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