The reaction of organic peroxy radicals with unsaturated compounds controlled by a non-epoxide pathway under atmospheric conditions.

ABSTRACT: Today, the reactions of gas-phase organic peroxy radicals (RO₂) with unsaturated Volatile Organic Compounds (VOC) are expected to be negligible at room temperature and ignored in atmospheric chemistry. This assumption is based on combustion studies (T ≥ 360 K), which were the only experimental data available for these reactions until recently. These studies also reported epoxide formation as the only reaction channel. In this work, the products of the reactions of 1-pentylperoxy (C₅H₁₁O₂) and methylperoxy (CH₃O₂) with 2,3-dimethyl-2-butene ("2,3DM2B") and isoprene were investigated at T = 300 ± 5 K with Proton Transfer Reaction Time-of-Flight Mass Spectrometry (PTR-ToF-MS) and Gas Chromatography/Electron Impact

SUBMITTER: Noziere B 

PROVIDER: S-EPMC10015623 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature