| Absorption max (nm) | Emission max (nm) | Quantum yield Φ (%) | EFISH μβ1907a,b (10−30 Dcm5esu−1) |
1a | 255(sh), 268, 333(sh), 377c,d | 559c | 38c | −1565e |
1b | 254(sh), 264, 378c,d | - | <0.1c | −2230e |
2a | 273, 329, 347(sh), 431c,d | 556c | 34 | −2090 |
2b | 268, 324, 430c,d | - | <0.1c | −1720 |
3a | 260, 319(sh), 396d | 563 | 1.3 | −1320 |
3b | 250(sh), 264, 360(sh), 377, 407(sh)d | - | <0.1 | −1640 |