| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1312031 | Inorganica Chimica Acta | 2016 | 7 Pages |
•Low molecular weight naphthalene based Schiff base was designed and synthesized in a single step.•The chemosensor shows unique selectivity towards Fe2+ ion in aqueous media.•A reversible sensor with a plausible PET inhibition and ICT mechanism has been demonstrated with a 1:1 binding stoichiometry.•Determination of Fe2+ in a variety of samples were analyzed using the chemosensor.
A naphthalene pyridine Schiff base 1 as a fluorescent chemosensor was developed for the detection of Fe2+ ions in CH3CN–H2O solution. Its binding properties toward various other heavy and transition metal ions including Fe3+ ions were examined. The sensor showed high selectivity and sensitivity towards Fe2+ ions in aqueous media with the lower detection limit of 1.5 × 10−7 M. The fluorescence “turn-on” recognition process follows the ICT process and CN isomerisation. In addition, determination of Fe2+ in a variety of samples were analyzed which includes commercially available tablets, tomato juice, dark chocolate and tap water.
Graphical abstractSelective detection of Fe2+ ion using naphthalene based fluorescent probe by ICT mechanism.Figure optionsDownload full-size imageDownload as PowerPoint slide
