Table 2. Energy levels for tetraphenylporphyrin, p-aminophenol and 5b.
| Energy values in eV | |||
| Tetraphenylporphyrin | p-Aminophenol | 5b | |
| HOMO–2 | –6.53074 | –7.97294 | –5.4757 |
| HOMO–1 | –5.52391 | –7.04775 | –5.1448 |
| HOMO | –5.30622 | –5.41507 | –4.7990 |
| LUMO | –2.55787 | –0.48981 | –2.1984 |
| LUMO+1 | –2.53066 | –0.05442 | –2.1739 |
| LUMO+2 | –0.9524 | 0 | –0.5831 |