Table 1.
The calculated molar extinction coefficients and fluorescence quantum yields of the fluorinated benzenes in acetonitrile.
| Compound | Ground State Symmetry | ε (M−1cm−1) | ΦF | Excitation wavelength (nm ± 2.5 nm) | Emission λmax (nm ± 2.5 nm) |
|---|---|---|---|---|---|
| FB | C2v | 254 nm – 571 ± 41 260 nm – 757 ± 51 266 nm – 600 ± 38 |
0.043 ± 0.002 | 260 | 283 |
| 12DFB | C2v | 255 nm – 736 ± 9 260 nm – 871 ± 13 265 nm – 676 ± 10 |
0.038 ± 0.002 | 260 | 286 |
| 13DFB | C2v | 259 nm – 780 ± 14 265 nm – 632 ± 14 |
0.025 ± 0.001 | 259 | 282 |
| 14DFB | D2h | 266 nm – 2149 ± 71 272 nm – 1742 ± 66 |
0.102 ± 0.006 | 266 | 288 |
| 123TFB | C2v | 251 nm – 160 ± 15 |
0.0042 ± 0.0003 | 251 | 345 |
| 124TFB | Cs | 264 nm – 1442 ± 90 269 nm – 1106 ± 69 |
0.135 ± 0.008 | 264 | 293 |
| 135TFB | D3h | 252 nm – 137 ± 9 |
0.0033 ± 0.0005 | 252 | 309 |
| 1234TFB | C2v | 260 nm – 1338 ± 51 |
0.050 ± 0.003 | 259 | 367 |
| 1235TFB | C2v | 259 nm – 642 ± 26 |
0.0058 ± 0.0004 | 259 | 306 |
| 1245TFB | D2h | 263 nm – 1724 ± 98 |
0.080 ± 0.005 | 263 | 309 |
| PFB | C2v | 260 nm – 651 ± 5 |
0.041 ± 0.002 | 259 | 305 389 |
| FB | D6h | 231 nm – 663 ± 2 |
0.078 ± 0.005 | 231 | 365 |