A turn-on Schiff-base fluorescence sensor for Fe3 + ion

• A new Fe3 + receptor can be easily prepared.
• The receptor exhibits an "off-on-type" mode with high selectivity in the presence of Fe3 +.

We synthesized a novel Schiff-based fluorescent receptor 2, and investigated its binding properties toward various metal ions. The receptor 2 exhibited a blue shift in emission band upon binding with Fe3 +. The receptor 2 exhibited a high association constant with submicromolar detection for Fe3 + in MeOH solution.

Receptor 2 exhibits an “off-on-type” mode with high sensitivity in the presence of Fe3 + and a high association constant with submicromolar detection for Fe3 + in MeOH solution.Figure optionsDownload as PowerPoint slide