Combining synchrotron vacuum-ultraviolet photoionization mass spectrometry and gas chromatography-mass spectrometry for isomer-specific mechanistic analysis with application to the benzyl self-reaction.

ABSTRACT: Elucidating the formation mechanism of polycyclic aromatic hydrocarbons (PAHs) is crucial to understand processes in the contexts of combustion, environmental science, astrochemistry, and nanomaterials synthesis. An excited electronic-state pathway has been proposed to account for the formation of 14π aromatic anthracene in the benzyl (b-C₇H₇) self-reaction. Here, to improve our understanding of anthracene formation, we investigate C₇H₇ bimolecular reactions in a tubular SiC microreactor through an isomer-resolved method that combines in situ synchrotron-radiation VUV photoionization mass spectrometry and ex-situ gas chromatography-mass spectrometry. We observe the formation of o-tolyl (o-C₇H₇) radical isomer, and identify s

SUBMITTER: Xu G 

PROVIDER: S-EPMC11686274 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature