Table 3 Absorption (λA), fluorescence (λF) maxima (nm) and quantum yield φf (%) of the prepared compounds
Compound | λA | λF | ε, I/Mcm × 104 | σa (10−16) cm2 | Quantum yield (%) φf |
|---|---|---|---|---|---|
1a | 321 | – | 2.8 | 1.07 | – |
1b | 317 | – | 2.9 | 1.11 | – |
1c | 299 | – | 3.1 | 1.19 | – |
1d | 309 | – | 2.9 | 1.11 | – |
3a | 320 | 372 | 3.2 | 1.23 | 0.68 |
3b | 325 | – | 3.3 | 1.27 | – |
3c | 315 | – | 3.1 | 1.19 | – |
3d | 325 | – | 3.0 | 1.15 | – |
5a | 326 | – | 3.4 | 1.3 | 0.63 |
5b | 295 | – | 5.8 | 2.23 | – |
6a | 320 | 360 | 2.3 | 1.07 | – |
6b | 325 | – | 6.2 | 2.38 | – |
9a | 315 | – | 5.5 | 2.11 | – |
9b | 322 | – | 6.5 | 2.5 | – |
10 | 326 | 537 | 7.8 | 3 | 0.73 |