Table 2. Morse Fit for the Binding Energy vs Vertical-Oriented H2 Distance Plot for All XCs and DMC.
| XC | RH2 [Å] | ΔE [kcal/mol] |
|---|---|---|
| PZ | 2.289 | 1.787 |
| PBE | 3.198 | 0.202 |
| PBE + D2 | 2.546 | 0.952 |
| PBE + D3 | 2.750 | 1.060 |
| PBE + TS | 2.653 | 1.147 |
| PBE + XDM | 2.788 | 0.904 |
| vdW-DF2 | 2.892 | 1.107 |
| rVV10 | 2.670 | 1.037 |
| DMC | 2.735 | 1.370(106) |