Table 1 UV–visible spectral bands of receptor L1-L4 with addition of nickel (II).
From: Naphthyridine derived colorimetric and fluorescent turn off sensors for Ni2+ in aqueous media
Receptor | UV–visible spectral band (nm) | Nickel addition (nm) |
|---|---|---|
L1 | 273, 283, 398, 440 | 535 |
L2 | 274, 286, 384, 443 | 538 |
L3 | 261, 287, 380, 450 | 550 |
L4 | 273, 285, 396, 438 | 537 |
