Another way to avoid the overstabilization of tetrahedral clusters due to the overestimation of entropic factors comes from the work by Dudev and Lim , where, only for the tetrahedral coordination, two additional water molecules were placed in the second coordination shell of Zn(II) (see Figure ). This approach has the advantage of considering the same number of ligands in both tetrahedral and octahedral environments, releasing the same number of water molecules as products. Therefore, we also evaluated ∆∆H T/O and ∆∆G T/O following this scheme, which we label as FCS+2W