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摘要
This article describes an efficient synthetic approach to design ferrocene tailed chalcone appended triazole encapped organo-silanes (7-12) from acetylinic ferrocene precursors (1-6). The synthesized compounds were well characterized by general spectroscopic techniques. The framed ligands were then evaluated for their ion sensing properties and were found to display significant perturbation in their absorption and emission behaviour upon addition of Cu2+ ions. Their sensing ability is highly reversible on addition of ethylenediaminetetraacetic acid (EDTA) and hence can be employed as potential Cu(II) sensing materials. In addition, the presence of ferrocene functionality overtures an electro active unit generating a multiple signalling sensor that also offers naked eye detection of Cu(II) ions with analytical detection limit of as low as 10 mu M. Above all, the designed chemosensor exhibits tolerance against other metal ions which enables the Cu2+ ion detection even in a complex matrix. Complexation behaviour of one of the silanes, FCTS 12 was also deliberated by computational analysis following DFT approach.
- 出版日期2017-5-2
