Table 3. Pearson’s Correlation (R) Matrix for the Gas-Phase 0–0 Energies Considering the Full 80 Molecule Set.
| method | TD-M06-2X | CIS(D) | ADC(2) | CC2 | SCS-CC2 | SOS-CC2 | BSE/GW |
|---|---|---|---|---|---|---|---|
| TD-M06-2X | 1.000 | ||||||
| CIS(D) | 0.948 | 1.000 | |||||
| ADC(2) | 0.951 | 0.986 | 1.000 | ||||
| CC2 | 0.960 | 0.977 | 0.996 | 1.000 | |||
| SCS-CC2 | 0.966 | 0.983 | 0.991 | 0.990 | 1.000 | ||
| SOS-CC2 | 0.961 | 0.979 | 0.982 | 0.979 | 0.998 | 1.000 | |
| BSE/GW | 0.990 | 0.959 | 0.958 | 0.962 | 0.975 | 0.974 | 1.000 |