Table 14.
Photophysical and photochemical properties of 94o–96o in MeCN solution.
| Compd. | λmax/nm (ε/104 M−1 cm−1) |
λem/nm | Stokes Shift, Δνfl (cm−1) |
Solvent | Ref. |
|---|---|---|---|---|---|
| 97o | 342 (1.64), 417 (1.36) | 547 | 5700 | MeCN | [62] |
| 98o | 364 (1.88), 414 (1.84) | 544 | 5750 | MeCN | [62] |
| 99o | 340 (2.00), 418 (1.72) | 541 | 5450 | MeCN | [62] |
| 100o | 332 (0.68), 414 (1.04) | 533 | 5400 | MeCN | [62] |
| 101o | 343 (1.44), 421 (1.24) | 510 | 4100 | MeCN | [62] |
| 102o | 275 (4.68), 460 (0.53) | 560 | MeCN | [63] | |
| 103o | 263 (3.03), 270 (3.28), 450 (2.85) | 560 | MeCN | [63] |
λmax: absorption maximum; ε: molar absorption coefficient; λem: fluorescence maximum.