Figure 6
Formation of 
via a complex atomic rearrangement process at the DV(555-777).
Simulation snapshots for the atomic rearrangement process (a–f) to produce 
from the two pyridinic-Ns and the desorbing process (g–i) of the third atomic-N which participates the process as a catalyst. The third atomic-N has the same species (bridge-N) at the initial stage (a) and final stage (f) of the rearrangement.
