In figure we for Pt 13 observe no significant deviation going from 0 K to 300 K for the first interaction peak for Pt-Pt interactions. This indicates that the nearest neighbour distance remains relatively constant as more ensemble structures become relevant. At 2900 K, the peak has shrunk significantly indicating that at higher temperatures it is less likely Pt-Pt will occur at the typical minimum distance. For Pt 13 H 2 , the initial peak shifts to the right to an inter-atomic distance distance of 2.7 Å indicating a lengthening of the typical bonds at high temperatures. A similar effect is observed for Pt 13 H 4 but the shift is not quite as dramatic.