| atomic | OPIUM | ||
| NIST | Lee & Martin | NIST | Lee & Martin |
LDA-VWN | 0.00000000 | 0.000032 (51) | 0.00000002 | 0.000035 (51) |
LSD-VWN | 0.00000000 | - | - | - |
GGA-PW91 | - | 0.000019 (50) | - | 0.000019 (50) |
GGA-PBE | - | 0.000008 (50) | - | 0.000008 (50) |