A new calix[4]arene Schiff base sensor for Hg2+ and Au3+ |
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| Authors: | Shahabuddin Memon Ashfaque Ali Bhatti Asif Ali Bhatti Ümmühan Ocak Miraç Ocak |
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| Affiliation: | 1.National Center of Excellence in Analytical Chemistry,University of Sindh,Jamshoro,Pakistan;2.Department of Chemistry, Faculty of Sciences,Karadeniz Technical University,Trabzon,Turkey |
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| Abstract: | ![]()
This article reports the selective sensing ability of a newly synthesized calix[4]arene Schiff base (C4TSB) derivative. C4TSB exhibited strong turn-off fluorescence affinity for Hg2+ and Au3+. The selective sensing ability of receptor was investigated in the presence of different co-existing competing ions. The limit of detection for Hg2+ and Au3+ was determined as 1.9 × 10?5 and 1.0 × 10?6 M, respectively. Receptor forms 1:1 stoichiometric complex with both metals and their binding constants were calculated as 7.9 × 103 M?1 for Hg2+ and 5.7 × 103 M?1 for Au3+. Complexes were also characterized through FT-IR spectroscopy. |
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