Table 1. Calculated and Observed Activation Barriers (kcal/mol) for Different Systems.
| System | ΔG‡ (cal) | ΔG‡ (obs) |
|---|---|---|
| I | 20.2 | 19.8 |
| II | 25.6 | - |
| III | 27.3 | - |
| IV | 32.6 | - |
| V | 37.6 | - |
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