TABLE 3.
Electronic energy, E, zero-point vibration energy, ZPE, basis set superposition error correction, BSSE, nand energy relative to the reactants, ∆E, of the transition states and final products identified for the reaction between 2a and pyrrolo [3,2-c]carbazole 10 for both C3 alkylation A) and C2 alkylation. All values are obtained at the B3LYP/6-31G (d,p) level. ∆E includes both ZPE and BSSE corrections.
| Structure | E/Eh | ZPE/Eh | BSSE/Eh | ∆E (kJ/mol) | |
|---|---|---|---|---|---|
| 2a | −474.8238068 | 0.120430 | |||
| 10 | −687.9494041 | 0.233090 | |||
| C2 alkylation | |||||
| TS endo [2a + 10] | −1162.771242 | 0.356763 | 0.008485 | 36.0 | |
| TS exo [2a + 10] | −1162.764597 | 0.356287 | 0.005853 | 45.2 | |
| Endo cycloadduct | −1162.8220909 | 0.361142 | −110.4 | ||
| Exo cycloadduct | −1162.822089 | 0.360943 | −110.3 | ||
| Open chain oxime 12a | −1162.830221 | 0.358642 | −136.2 | ||
| C3 alkylation | |||||
| TS endo [2a + 10] | −1162.766076 | 0.356457 | 0.006851 | 44.4 | |
| TS exo [2a + 10] | −1162.766980 | 0.356720 | 0.005897 | 40.2 | |
| Endo cycloadduct | −1162.827975 | 0.361463 | −122.9 | ||
| Exo cycloadduct | −1162.827778 | 0.360788 | −124.2 | ||
| Open chain oxime 11a | −1162.830837 | 0.359105 | −136.6 | ||