SIE is especially pernicious for anions, 92-100 so we next consider where spurious oscillations in MBE(n) are limited to hydrated anions. To do so, we extracted a set of (H 2 O) 15 and Na + (H 2 O) 14 clusters from molecular dynamics simulations. MBE(n) results for these systems are plotted in Fig. , using the functionals PBE, PBE0, and HF representing α hfx = 0, 0.25, and 1.0, respec-tively. We also examine results for the long-range corrected LRC-ωPBE functional 101 that switches between α hfx = 0 at short range and α hfx = 1 at long range. Results for F -(H 2 O) 14 are also plotted in Fig. to facilitate side-by-side comparison to results from the previous section.