The newer generation Minnesota hybrid functionals do not improve the structural description any further (Fig. , right panel). While possessing nearly the same amount of exact exchange as M06-2X, the new functional form introduced in M08-HX (52%) and M08-SO (57%) does not outperform M06-2X. MN12-SX is both range-separated and non-separable, with 25% of exact exchange at short range that decreases to 0% at long range. This functional has the lowest proportion of exact exchange. Notably, it is also the one where the first g OO and the second g OH peaks are shifted to the right, i.e. to longer intermolecular distances, presumably due to an elongation (weakening) of the intermolecular hydrogen bonds, or a lack of vdW cohesive forces of the ESI †. Rescaled values were obtained through empirical interpolation of experimental data . The grey areas represent a visual estimate of the potential deviations resulting from the neglect of nuclear quantum effects as well as statistical and experimental uncertainties (c.f. Section 3.1.2). second hypothesis). In general, it is observed that the inclusion of a fraction of exact exchange leads to clearly visible improvements in the g OH and g HH RDFs over local functionals, and addition of the right amount of exact exchange can also better the agreement for g OO . This is particularly the case for M11, MN12-SX and MN15 that improve the second peak of g OH significantly over M11-L, MN12-L and MN15-L, respectively. Moreover, although not perfect, these functionals clearly ameliorate the position and shape of the first g OO peak compared to their local counterparts. Consequently, this emphasizes the crucial importance of exact exchange in accurately describing the hydrogen bond network in general, supporting the notion that hybrid functionals and higher rungs of Jacob's ladder are indeed the most accurate approaches for depicting complex interactions with KS-DFT.