Journal
CHEMICAL PHYSICS LETTERS
Volume 445, Issue 4-6, Pages 108-112Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.cplett.2007.07.099
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Funding
- NERC [ncas10006] Funding Source: UKRI
- Natural Environment Research Council [ncas10006, NER/T/S/2002/00039] Funding Source: researchfish
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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 + O-2 (+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 + O-2 (+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 O-2. (C) 2007 Elsevier B.V. All rights reserved.
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