Table 1 Photophysical parameters of NHC-based luminescent radicals 3a–c and 4a–c in THF
From: A platform for blue-luminescent carbon-centered radicals
Radical | λex (nm) | λem (nm) | τ (ns) | Φf (%) |
|---|---|---|---|---|
3aI | 376 | 529 | 6.9 | 33.1 |
3aII | 377 | 520 | 4.3 | 24.8 |
3aIII | 364 | 463 | 4.4 | 32.6 |
3aIV | 372 | 460 | 3.6 | 23.8 |
3bI | 375 | 490 | 6.1 | 32.7 |
3bII | 376 | 499 | 6.5 | 36.8 |
3bIII | 370 | 444 | 3.5 | 10.4 |
3bIV | 370 | 464 | 3.4 | 14.3 |
3cI | 370 | 484 | 5.1 | 1.5 |
4a | 365 | 482 | 8.1 | 6.5 |
4b | 372 | 470 | 7.2 | 13.4 |
4c | 376 | 469 | 5.8 | 0.1 |
