In contrast to the others, the MN12-L and MN15-L non-separable functionals result in an overstructured g OO but again lack exactness in the intermolecular distances with typical shifts in the location of the first minimum up to 1 Å. MN15-L was designed from a re-optimization of MN12-L using a larger database and additional smoothness restraints on the functional form. Therefore, the RDF similarities between M06-L and M11-L (different forms, different training data) and differences between M06-L/revM06-L and MN12-L/MN15-L (same form, different constraints, different training data) would advocate for a larger sensitivity of semiempirical meta-GGAs to exact constraints rather than training data. Consistent with this, the additional smoothness restraints Fig. Oxygen-oxygen (g OO ), oxygen-hydrogen (g OH ) and hydrogen-hydrogen (g HH ) radial distribution functions of liquid water predicted by Minnesota density functionals. The experimental reference for g OO comes from X-ray diffraction The hybrid functionals of the M06 family are shown in the center panel of Fig. . Interestingly, M06 predicts RDFs that are very similar to its M06-L sister. M06-L therefore appears as a good local functional fit for the 27%-hybrid M06, but both fail at reproducing the intermolecular structure of water at long range . In contrast, the increase of exact exchange to 100% in M06-HF noticeably over-accentuates the structure and shifts the first and second g OO peaks to too short intermolecular distances. This increased cohesive effect that was missing for the local functionals is also observed in the g OH and g HH RDFs.