Supporting Information for "Where does the energy go during the interstellar NH3 formation on water ice? A computational study"

Supplementary Material consisting of:

1.  The energetics of the gas-phase reactions for both the H-additions and H-abstractions,
2.  The evolution with time of the total, potential and kinetic energies of the studied processes
3.  Results of the NVE AIMD simulations for the NH₃ formation from Pos2