We also note that the trend of increasing difference score with decreasing energy is reversed when considered on this scale, indicating Pt 13 NP structures more similar to the GM will result in a lower energy structure. Comparing between the different in-sphere structures we observe large increases in energetic diversity and right shift in difference scores of the lowest energy structures upon hydrogenation. The former indicates that the addition of H atoms to a Pt 13 NP will result in a an increasingly structure-sensitive energy level of LMs and not necessarily an increase in structure diversity itself, the latter indicates that a significant change in structure is required to accesses the lowest energy structures. Indeed for the Pt 13 H 4