Articles | Volume 22, issue 11
Atmos. Chem. Phys., 22, 7259–7271, 2022
https://doi.org/10.5194/acp-22-7259-2022
Atmos. Chem. Phys., 22, 7259–7271, 2022
https://doi.org/10.5194/acp-22-7259-2022
Research article
07 Jun 2022
Research article | 07 Jun 2022

Elucidating the critical oligomeric steps in secondary organic aerosol and brown carbon formation

Yuemeng Ji et al.

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Short summary
The formation mechanisms of secondary organic aerosol and brown carbon from small α-carbonyls are still unclear. Thus, the mechanisms and kinetics of aqueous-phase reactions of glyoxal were investigated using quantum chemical and kinetic rate calculations. Several essential isomeric processes were identified, including protonation to yield diol/tetrol and carbenium ions as well as nucleophilic addition of carbenium ions to diol/tetrol and free methylamine/ammonia.
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