Table 2.
Spectroscopic data for porphyrins 4, 5, 6, 7 and 8 in DMF at room temperature
Porphyrin | Absorption (λmax, nm) | Emission (λmax, nm) | Stokes shift, nm | Φfa |
---|---|---|---|---|
4 | 407, 497, 530, 577, 615 | 618, 645, 665, 684 | 220 | 0.089 |
5 | 397, 497, 530, 566, 620 | 620, 646, 670, 690 | 223 | 0.124 |
6 | 398, 497, 530, 566, 616 | 618, 651, 665, 684 | 220 | 0.086 |
7 | 408, 497, 530, 573, 618 | 620, 655, 670, 686 | 212 | 0.124 |
8 | 408, 497, 531, 574, 620 | 621, 655, 670, 686 | 213 | 0.132 |
Calculated using porphyrin 3 as standard (0.102) [28].