Computed reaction barriers (ΔG‡) and EDA terms (in kcal mol−1, computed at the ZORA-M06-2X/TZ2P//M06-2X/6-311+G* level)a of the reactions of 1-CH2 and 1-S with different nucleophiles.
| System | Nucleophile | ΔG‡ | ΔEint | ΔEPauli | ΔVelstat | ΔEorb |
|---|---|---|---|---|---|---|
| 1-X | ||||||
| 1-CH2 | Me2S CH–CN | 20.7 | −21.4 | 180.5 | −109.2 | −92.7 |
| 1-S | 19.6 | −22.7 | 180.5 | −109.7 | −93.5 | |
| 1-CH2 | Me2S CH–CO2Me | 24.8 | −23.0 | 180.9 | −109.8 | −94.1 |
| 1-S | 23.7 | −24.6 | 181.7 | −111.0 | −95.2 | |
| 1-CH2 | Me2S CH–p(NO2)C6H4 | 19.6 | −19.6 | 138.6 | −87.7 | −70.4 |
| 1-S | 18.0 | −21.6 | 139.9 | −89.2 | −72.2 | |
| 1-CH2 | [Cl–CH–SO2Ph]− | 10.3 | −22.4 | 141.8 | −87.7 | −77.4 |
| 1-S | 5.1 | −27.6 | 143.5 | −91.9 | −49.6 |
Computed at the same consistent C⋯C bond-forming distance (i.e. the distance in the transition state of the 1-S process).