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- W1992443046 abstract "Branching fractions for two hydrogen abstraction channels of the OH + CH3CHO reaction producing H2O + CH3CO (a) and H2O + CH2CHO (b) were determined using chemical ionization mass spectrometry. Reaction took place in a high-pressure turbulent flow reactor at 200 Torr of carrier gas N2. The branching fraction for the abstraction from the methyl group, (5.1+2.4/-1.7) %, was determined at room temperature by direct detection of the vinoxy radicals (CH2CHO) using proton-transfer ionization. The total H2O yield of (97.7 ± 4.7) % was obtained at T = 298 and 248 K by comparison with OH + C6H12 reaction, confirming that in this temperature range reaction proceeds by H-atom abstraction. Secondary reactions of the acetyl and vinoxy radicals in the presence of O2 and NO2 were studied by monitoring the stable products CH2O, (HCO)2, and CH3OH using proton-transfer ionization. It was found that formaldehyde is the major coproduct of OH in the CH3CO + O2 reaction." @default.
- W1992443046 created "2016-06-24" @default.
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- W1992443046 date "2004-01-20" @default.
- W1992443046 modified "2023-09-29" @default.
- W1992443046 title "Branching Fractions for H<sub>2</sub>O Forming Channels of the Reaction of OH Radicals with Acetaldehyde" @default.
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- W1992443046 doi "https://doi.org/10.1021/jp036740m" @default.
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