We can reuse our ULES metric from section 3.2 to describe how diverse the low energy region is for each structure. structure, upon LO, which is initialised as the GM of the Pt 13 . There is some evidence for this when we perform a comparison of the difference of the Pt 13 GM to that of the structures produced with the on surface methodology. This comparison is made in figure . Finally, it should be noted that the ULES metric while valuable only shows a snapshot of what is going on at that arbitrary energy cutoff (≈0.54 eV). The full spectrum of where unique structures occur is shown and discussed in section S9. GM structure) and the maximum recorded by that particular pyGlobOpt methodology run. The energy axis was divided 50 times between the lowest and highest energy recorded structure for each pyGlobOpt run. This means resolutions will differ between structures.