The propargyl radical (C3H3) self-reaction is a pivotal step in the formation of benzene in nature, but experimental validation for the complex reaction channels and products is challenging to obtain. Here, the authors produce propargyl radicals in a flow tube and report the branching ratios of eight identified C6H6 isomers in the propargyl self-reaction using isomer-selective threshold-photoelectron spectroscopy.
- Helgi Rafn Hrodmarsson
- Gustavo A. Garcia
- Jean-Christophe Loison