Identification of the acetaldehyde oxide Criegee intermediate reaction network in the ozone-assisted low-temperature oxidation of -2-butene.

Uni- and bi-molecular reactions involving Criegee intermediates (CIs) have been the focus of many studies due to the role these molecules play in atmospheric chemistry. The reactivity of CIs is known to strongly depend on their structure. The reaction network of the second simplest CI, acetaldehyde oxide (CHCHOO), is investigated in this work in an atmospheric pressure jet-stirred reactor (JSR) during the ozonolysis of -2-butene to explore the kinetic pathways relevant to atmospheric chemistry and low-temperature combustion.