Table 3.  AM1 calculated heats of formation and relative energies (kcal mol-1) for mechanism 4

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compound
D Hf
Erel
compound
D Hf
Erel
1 + H2O
-107.4
0.0
TS4
-99.6
7.8
TS1
-84.6
22.8
Int4
-102.4
5.0
Int1
-144.2
-36.8
TS5
-101.5
5.9
TS2
-92.5
14.9
Int5
-130.0
-22.6
Int2
-136.2
-28.8
TS6
-75.2
32.2
TS3
-116.5
-9.1
2 + H2O
-120.4
-13.0
Int3
-144.1
-36.7