In this work we explored the effects of 30 proton donor (PD) species on the nitrogen adsorption on lithium using DFT modeling. We show that the presence of PD species during nitrogen adsorption results in four unique and recurrent nitrogen configurations on the lithium surface: embedded, adsorbed, buried and standing. Of these recurring states, the embedded and buried states were found to have adsorption energies much greater than nitrogen's adsorption energy on the lithium surface in the absence of the PD. Additionally, these energetically favorable states were found to have significantly larger bond length changes (on average 15% for the embedded state and 20% for the buried state) compared to when nitrogen interacted with lithium in the absence of the PD. Through charge analysis, we found that the magnitude of charge transfer to the nitrogen molecule correlated directly to the extent of this bond elongation. And finally, though we observe that the Kamlet-Taft parameters were insufficient to fully describe the formation of non-protonated states, we found