Fig. 3: Production of formaldehyde and formyl radicals.

a The main reaction pathways for the formation of formaldehyde and formyl radicals. b The real-time trajectory of the reaction CH3O· + ·OH → CH2O + H2O. Atoms in cyan, red and gray colors are carbon, oxygen and hydrogen, respectively. c The real-time trajectory of the reaction CH2O· + ·OH → ·CHO + H2O. Definition of colored atoms is the same as in (b).