Photophysical properties of BODIPY dyes with increasing number of iodine atoms.
| Molecule | ε (M−1 cm−1) | λ max (nm) | λ max (nm) | Φ FLUO | Φ Δ |
|---|---|---|---|---|---|
| BDP-tol (ref. 38) | 69 000a | 500a | 516a | 3.6%a | n.r. |
| I-BDP-tol (ref. 38) | 22 000a | 523a | 540a | 3.4%a | n.r. |
| I2-BDP-tol (ref. 38) | 43 000a | 548a | 567a | 1.2%a | 83%b |
| I3-BDP-tol (ref. 38) | 48 000a | 563a | 577a | 6.0%a | 86%b |
| I4-BDP-tol (ref. 38) | 116 000a | 581a | 593a | 9.9%a | 87%b |
| Me4-BDP-Ph (ref. 39) | 44 000c | 498c | 509c | 65%c | 1%d |
| Me4-BDP-Ph-I (ref. 39) | 81 000c | 499c | 511c | 49%c | 1%d |
a
In cyclohexane.
b
In MeCN.
c
In MeOH.
d
In DCM.