Table 2. Energies of the Selected FMOs (HOMO – 2–LUMO + 2) of DCNO and PCNP (eV) along with Their HOMO/LUMO Gaps (eV), Calculated at the B3LYP-D2/6-311+G* Level with the Implicit Effects from CH3OH.
| MOs | energy, eV | ΔE (HOMO/LUMO), eV |
|---|---|---|
| DCNO | ||
| LUMO | –1.86 | 4.40 |
| HOMO | –6.26 | |
| LUMO + 1 | –1.75 | 4.97 |
| HOMO – 1 | –6.72 | |
| LUMO + 2 | –1.54 | 5.48 |
| HOMO – 2 | –7.02 | |
| PCNP | ||
| LUMO | –3.09 | 3.84 |
| HOMO | –6.93 | |
| LUMO + 1 | –2.95 | 4.04 |
| HOMO – 1 | –6.99 | |
| LUMO + 2 | –2.01 | 5.98 |
| HOMO – 2 | –7.99 | |