Kinetics of CH2OO and syn-CH3CHOO reaction with acrolein

Xiaohu Zhou; Yang Chen; Yiqiang Liu; Xinyong Li; Wenrui Dong; Xueming Yang

doi:10.1039/d1cp00492a

Kinetics of CH₂OO and syn-CH₃CHOO reaction with acrolein

Phys Chem Chem Phys. 2021 Jun 16;23(23):13276-13283. doi: 10.1039/d1cp00492a.

Authors

Xiaohu Zhou¹, Yang Chen², Yiqiang Liu³, Xinyong Li⁴, Wenrui Dong⁵, Xueming Yang⁶

Affiliations

¹ Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China. xyli@dlut.edu.cn and Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian, 116024, China and State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China. wrdong@dicp.ac.cn xmyang@dicp.ac.cn.
² State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China. wrdong@dicp.ac.cn xmyang@dicp.ac.cn and Key Laboratory of Chemical Lasers, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China and University of Chinese Academy of Sciences, Beijing, 100049, China.
³ State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China. wrdong@dicp.ac.cn xmyang@dicp.ac.cn and Key Laboratory of Materials Modification by Laser, Ion and Electron Beams (Ministry of Education), School of Physics, Dalian University of Technology, Dalian, 116024, China.
⁴ Key Laboratory of Industrial Ecology and Environmental Engineering (Ministry of Education), School of Environmental Science and Technology, Dalian University of Technology, Dalian, 116024, China. xyli@dlut.edu.cn.
⁵ State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China. wrdong@dicp.ac.cn xmyang@dicp.ac.cn.
⁶ State Key Laboratory of Molecular Reaction Dynamics, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China. wrdong@dicp.ac.cn xmyang@dicp.ac.cn and Department of Chemistry, Southern University of Science and Technology, Shenzhen, 518055, China.

PMID: 34095924
DOI: 10.1039/d1cp00492a

Abstract

The kinetics for the reactions of CH2OO and syn-CH3CHOO with acrolein, a typical unsaturated aldehyde in the atmosphere, were studied in a flash photolysis flow reactor using the OH laser-induced fluorescence (LIF) method. The bimolecular reaction rate coefficients were measured at temperatures ranging from 281 to 318 K, and pressures ranging from 5 to 200 Torr. No obvious dependence of the rate coefficients on pressure was observed under the current experimental conditions. Both reactions exhibit negative temperature-dependence, with an activation energy of (-1.70 ± 0.19) and (-1.47 ± 0.24) kcal mol-1 for CH2OO and syn-CH3CHOO reacting with acrolein, derived from the Arrhenius equation. At 298 K, the measured rate coefficients for CH2OO/syn-CH3CHOO + acrolein reactions are (1.63 ± 0.19) × 10-12 cm3 s-1 and (1.17 ± 0.16) × 10-13 cm3 s-1, respectively. The rate coefficient of the former reaction is in reasonable agreement with a recent theoretical result.