endo-Cyclization of unsaturated RO2 radicals from the gas-phase ozonolysis of cyclohexadienes

Abstract

Unsaturated RO₂ radicals from the ozonolysis of cyclodienes can readily undergo an endo-cyclization step under atmospheric conditions forming a new ring-containing RO₂ radical after further O₂ addition. This path represents an extension of the atmospheric autoxidation scheme forming highly oxidized multifunctional organic compounds (HOMs). HOMs play an important role for Earth's organic aerosol burden.