When any of the dispersion corrections investigated here is included in the DFT calculations, the agreement of the resulting PECs to that of the reference improves considerably, irrespective of which correction is employed. The effect completely overshadows the differences in energy from switching functionals. The most ubiquitous correction, D3 (with the BJ damping function), was not developed specifically with solvation in mind, and is not dependent of the electronic density, which means that two calculations of different electronic states on the same nuclear geometry would yield the same dispersion correction. Thus, benchmarks such as these are important to perform. In this specific case, the results show that the least expensive BLYP-D3(BJ) method should perform well for more computationally demanding simulations, such as sampling thermally averaged structures of the transition metal complex and its solvation structure at a full ab initio level.