We would like to provide a brief explanation of the structural abbreviations used throughout this manuscript. The issue with the standard D3 models was initially observed during a computational investigation of hydrogen adsorption to the M I Zn II 4Cl3(bta)6 (bta -= benzotriazolate) Kuratowski-type cluster. For brevity, we will refer to the molecular complex of hydrogen adsorbed onto the cluster as H2-MKur, where M stands for the binding metal site. Further investigation revealed additional problematic cases that exhibited spurious (unphysical) local minima when using the D3 models. In all these cases, the minimum closest to the true local minimum will be denoted with the suffix "-(1)", while the unphysical counterpart will be noted with the suffix "-(2)". For example, H2-NiKur-(1) and H2-NiKur-(2) refer to two different geometries, where the first is the closest to the true local minimum and the second represents the additional artifactual local minimum found by geometry optimization with a D3 model.