He et al. also studied these clusters, but at 283.15 K and found the following values at 283.15 K for IA-IsA, IsA-IsA, and IA-IA: -12.9 kcal/mol, -13.1 kcal/mol, and -7.7 kcal/mol respectively. At the same temperature we find: -10.5 kcal/mol, -10.7 kcal/mol, and -6.5 kcal/mol, which can be seen in Table in Section S3.4 of the SI. Therefore, they estimate the clusters to be 1.2-2.5 kcal/mol more stable than ours. This is in line with the expected overestimation of the stability when the structures are calculated at the DLPNO-CCSD(T 0 )/def2-QZVPP//ωB97X-D/aug-cc-pVTZ-PP level of theory.