A new polyamine containing imine group as a fluorescent chemosensor with high selectivity for Fe۳+

A new fluorescent sensor (L) based on imine group including oxygen has been investigated in this work. Chemosensor (L) exhibited highly selective and sensitive fluorescence sensing ability for Fe۳+ over other metal ions in a mix of H۲O-DMF solution. The new fluorescence quenching response of (L) for Fe۳+ indicated that (L) can be used as ‘‘turn-off’’ fluorescent chemosensor to selectively detect Fe۳+. The fluorescent sensor (L) was synthesized by the template condensation of salicylaldehyde and a new tetraamine ۱:۲ molar ratio and characterized by IR, NMR spectroscopy and elemental analysis.

کلیدواژه ها:

Chemosensor ، fluorescent ، Turn-off ، Fe۳ sensing ، Schiff base ، Ligand