Table 3. Thermal Activation Energy on the Triplet Hypersurface According to DFT Calculations for Reaction Pathways 1–3 in Acetonitrilea.
complex | pathway | ligand dissociating | state (x) | state (y) | state (z) | ΔE1 (x – [a]) (kJ/mol) | ΔE2 (z – y) (kJ/mol) | ΔE3 (x – y) (kJ/mol) |
---|---|---|---|---|---|---|---|---|
[1a]2+ | 1 | dmbpy | TS-1a-12a | [12a]2+ | 52.2 | |||
2 | bpy | TS-1a-14a | [14a]2+ | TS-14a-19a | 90.5 | 10.8 | 20.7 | |
3 | bpy | TS-1a-16a | [16a]2+ | 62.7 | ||||
[2a]2+ | 1 | dmphen | TS-2a-13a | [13a]2+ | 38.3 | |||
2 | bpy | TS-2a-15a | [15a]2+ | TS-15a-20a | 80.2 | 15.0 | 27.9 | |
3 | bpy | TS-2a-17a | [17a]2+ | 67.8 |
[a] Energetically, the lowest on the triplet state.