Rate coefficient of the reaction CH2 OO + NO2 probed with a quantum-cascade laser near 11 μm

Physical Chemistry Chemical Physics : PCCP
Pei-Ling LuoYuan-Pern Lee

Abstract

The reaction of the simplest Criegee intermediate CH2OO with NO2 is considered to be important in atmospheric chemistry because of its prospective contribution to the decay of CH2OO and the additional source of NO3, hence its effects on the NOx and HOx cycles. The reported rate coefficients of this reaction varied by a factor of 5. Employing a cw quantum-cascade laser with wavelength near 11 μm coupled with Herriott mirrors to probe CH2OO sensitively, we investigated in detail the reaction CH2OO + NO2 under total pressure 5.9-9.7 Torr at 298 K and reported a rate coefficient kNO2 = (1.0 ± 0.2) × 10-12 cm3 molecule-1 s-1, about one-seventh the value determined with direct measurements of CH2OO by Weltz et al. This smaller rate coefficient implies that the title reaction contributes to the atmospheric source of NO3 and the decay of CH2OO much less than previously conceived.

References

Nov 3, 2006·The Journal of Physical Chemistry. a·Arkke J EskolaRaimo S Timonen
Mar 26, 2008·Chemical Society Reviews·David Johnson, George Marston
Sep 14, 2013·Physical Chemistry Chemical Physics : PCCP·Bin OuyangWilliam J Bloss
Sep 21, 2013·The Journal of Chemical Physics·Masakazu Nakajima, Yasuki Endo
Oct 8, 2013·Physical Chemistry Chemical Physics : PCCP·Craig A TaatjesCarl J Percival
Nov 30, 2013·Physical Chemistry Chemical Physics : PCCP·Daniel StonePaul Seakins
Jul 17, 2015·The Journal of Chemical Physics·Yuan-Pern Lee
Aug 13, 2015·The Journal of Physical Chemistry Letters·Mica C SmithJim Jr-Min Lin
Dec 19, 2013·The Journal of Physical Chemistry Letters·Leonid Sheps
Aug 26, 2017·Chemical Society Reviews·Jim Jr-Min Lin, Wen Chao
Apr 4, 2018·Accounts of Chemical Research·Marsha I Lester, Stephen J Klippenstein

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Citations

Jun 8, 2021·Physical Chemistry Chemical Physics : PCCP·Xiaohu ZhouXueming Yang

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