Table 3.
Fluorescence emission maxima of CYV and CURC in selected solvents. Excitation @ λAbs.
| Solvent | λAbs (nm) (ΦFluor) | λCURC (nm) (ΦCURC) | |
|---|---|---|---|
| Non polar | Cyclohexane | 481 ([4 ± 1] × 10−5) | 502, 471, 443 (0.006 ± 0.003) |
| Polar weakly H-bonding | Chloroform | 478 | 503 |
| Ethyl acetate | 487 | 494 | |
| Acetone | 502 | 510 | |
| Acetonitrile | 496 ([4 ± 1] × 10−5) | 521 (0.156 ± 0.003) | |
| Strong H-bond acceptors | DMFA | 514 | 536 |
| DMSO | 511 ([4.4 ± 0.5] × 10−4) | 550 (0.026 ± 0.002) | |
| Alcohols | Ethanol | 509 ([1.2 ± 0.1] × 10−3) | 553 (0.033 ± 0.003) |
| Methanol | 518 ([1.4 ± 0.2] × 10−3) | 566 (0.028 ± 0.002) | |