標題: Observation of hydroperoxyethyl formate from the reaction between the methyl Criegee intermediate and formic acid
作者: Cabezas, Carlos
Endo, Yasuki
應用化學系
Department of Applied Chemistry
公開日期: 14-一月-2020
摘要: Rapid reactions of carboxylic acids with Criegee intermediates provide efficient gas phase removal processes and are proposed to trigger the formation of new molecular compounds, which are implicated in the growth of atmospheric aerosols. The new adducts formed in these reactions are known as hydroperoxide esters and are predicted to be condensable, with lower vapor pressures than the reactants. We report here the direct detection of hydroperoxyethyl formate (HOOCH(CH3)OCHO) formed in the gas phase reaction between the methyl substituted Criegee intermediate, CH3CHOO, and formic acid. Two different isomers of this hydroperoxide ester have been observed using the combination of pulsed Fourier-transform microwave spectroscopy with isotopic substitution experiments and high-level quantum chemical calculations. The identification of hydroperoxyethyl formate as the main nascent product of the CH3CHOO and HCOOH reaction differs from previous results that reported the formation of vinyl hydroperoxide as the reaction product of this reaction.
URI: http://dx.doi.org/10.1039/c9cp05030b
http://hdl.handle.net/11536/153534
ISSN: 1463-9076
DOI: 10.1039/c9cp05030b
期刊: PHYSICAL CHEMISTRY CHEMICAL PHYSICS
Volume: 22
Issue: 2
起始頁: 446
結束頁: 454
顯示於類別:期刊論文