Abstract
An easily available fluorescent sensor (L) based on salicylaldehyde has been investigated in this work. Chemosensor (L) was exhibited highly selective and sensitive fluorescence sensing ability for Fe3+ over other metal ions in H2O-DMF solution. The fluorescence quenching response of (L) for Fe3+ indcated that (L) can be used as “turn-off” fluorescent chemosensor to selectively detect Fe3+. The fluorescent sensor (L) was synthesized by the one pot condensation reaction of 2-[3-(2-formyl phenoxy)propoxy]benzaldehyde and 2-aminobenzenethiol in a 1 : 2 molar ratio and characterized by IR, NMR spectroscopy and elemental analysis.
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