کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5377527 | 1504821 | 2017 | 6 صفحه PDF | دانلود رایگان |
- Channel-specific rate constants of chemically activated reaction were calculated.
- The main products channels are CH3Â +Â HCO, CH2CHOÂ +Â H, CH3COÂ +Â H, and CH2C:Â +Â H2O.
- Product distribution is independent of pressure; stabilization is unimportant.
The recombination of the vinyl (C2H3) and the hydroxyl (OH) radicals was studied computationally using quantum chemistry and master equation/RRKM. The reaction mechanism includes the initial addition, several isomerization steps, and decomposition via seven different channels. The spectrum of products demonstrates temperature dependence in the 300-3000Â K range. At low temperatures (below 1600Â K), CH3Â +Â HCO products are dominant but at elevated temperatures vinoxy radical (CH2CHO) and hydrogen atom become more important. The acetyl (CH3CO)Â +Â H products and formation of vinylidene (CH2C:) and water products are minor but non-negligible.
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Journal: Chemical Physics Letters - Volume 685, 1 October 2017, Pages 165-170