Photophysical and electrochemical properties of BODIPY dyes containing different halogens.
| Molecule | ε (M−1 cm−1)a | λ max (nm)a | λ max (nm)a | Φ FLUO a | Φ Δ a | E(A/A˙−)bd | E(A˙+/A)bd |
|---|---|---|---|---|---|---|---|
| H2-BDP-OAc (ref. 35 and 36) | 71 000 | 517 | 529 | 73.4% | <0.05% | −1.05c | +1.14c |
| Cl2-BDP-OAc (ref. 35 and 37) | 48 000 | 544 | 562 | 67.5% | 22% | −0.85c | +1.46c |
| Br2-BDP-OAc (ref. 35 and 36) | 56 300 | 545 | 565 | 15.5% | 54% | −0.74c | +1.33 |
| I2-BDP-OAc (ref. 35 and 36) | 49 000 | 553 | 575 | 1.8% | 84% | −0.75c | +1.30 |
a
In MeOH.
b
In MeCN.
c
Chemically irreversible electron transfer process.
d
In V vs. SCE.