Kinetic study of C1 criegee intermediate with diethylamine and ethylamine and their atmospheric implications

Jiayu Shi,Haotian Jiang,Li Che,Siyue Liu,Yang Chen,Xueming Yang,Wenrui Dong

doi:10.1016/j.cplett.2023.140885

Kinetic study of C1 criegee intermediate with diethylamine and ethylamine and their atmospheric implications

Jiayu Shi, Haotian Jiang + Show 5 more

https://doi.org/10.1016/j.cplett.2023.140885

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Journal: Chemical physics letters

Publication Date: Oct 14, 2023

Affiliation: Dalian Maritime University, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, University of Science and Technology of China, Dalian University of Technology, University of Chinese Academy of Sciences, Southern University of Science and Technology, Hefei University

#OH Laser-induced Fluorescence #Laser-induced Fluorescence Method + Show 8 more

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Abstract

This paper investigates the pressure and temperature-dependent kinetics of CH2OO reacting with diethylamine (DEA) and ethylamine (EA) using the OH laser-induced fluorescence method. Pressure independence was observed within the range of 5.4–75 Torr. The rate coefficients for these reactions at 298 K are (2.49 ± 0.39) × 10−11 and (8.14 ± 1.25) × 10−12 cm3 molecule−1 s−1. The activation energies, determined from experiments conducted between 283 and 328 K, are (−2.01 ± 0.08) and (−1.35 ± 0.02) kcal mol−1. These reactions may contribute to the degradation of DEA and EA under specific environmental conditions.

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