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FTIR product study of the reaction of CH3OCH2O2+HO2

✍ Scribed by Timothy J. Wallington; Michael D. Hurley; James C. Ball; Michael E. Jenkin

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 560 KB
Volume: 211
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(93)80049-u

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✦ Synopsis

Fourier transform infrared spectroscopy was used to identify CHrOCHO and CH,OCH,OOH as products of the gas-phase reaction of CH,0CH202 radicals with HO1 radicals. At 700 Torr and 2952 2 K, branching ratios of k,./k, =0.53 f 0.08 and klb/ k, =0.40* 0.04 were established. Quoted errors are 2 standard deviations together with our estimate of systematic uncertainties. (CH,OCHrOr+ H02+CH30CH200H+02 ( la), CH,0CHrOz+HO~~CH~OCHO+02+H20 ( lb).) This result is discussed with respect to previous literature data and to computer models ofatmospheric chemistry. As part of this work, the rate constants for the reaction ofCl atoms with CH,OCH#OH and CHsOCHO were determined to be (6.1 kO.3) x lo-" and (1.4*0.1)X IO-'* cm3 molecule-' s-', respectively.

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