| substituent |
Activation energies, ΔEact (kcal/mol) |
Enthalpy change, ΔH (kcal/mol) |
| |
Syn |
Anti |
Syn |
Anti |
| |
endo |
exo |
endo |
exo |
endo |
exo |
endo |
exo |
| -CH3 |
+12.22 |
+12.03 |
+7.00 |
+9.22 |
-55.84 |
-55.94 |
-55.94 |
-55.84 |
| -OH |
+8.53 |
+7.34 |
+7.39 |
+9.20 |
-54.89 |
-56.17 |
-56.98 |
-54.90 |
| -CN |
+6.23 |
+7.28 |
+5.10 |
+7.91 |
-57.36 |
-58.00 |
-58.00 |
-57.36 |
| -Cl |
+8.74 |
+8.30 |
+6.68 |
+8.77 |
-55.84 |
-56.33 |
-56.33 |
-55.84 |
|
