The second peak, corresponding to the next nearest Pt atom(s) to the H adsorbed Pt, is significantly broadened at high temperatures corresponding to a larger structural dimorphism of the Pt NP. A similar peak is observed for Pt-H Pt 13 H 4 interactions showing that this same interaction is also present at low temperatures. However, other smaller distance hydgrogentated Pt adjacent interactions are also present. Finally for the H-H interactions we have shown the full spectrum of associations within the NP as H atoms can be found quite far away from each other. Indeed for Pt 13 H 2 where there is only one such interaction and one structure with significant presence, due to a well defined GM, These H atoms tend to be far apart from one another, occurring exclusively at around 7 Å for low temperatures.