Author/Authors :
Memon, Shahabuddin National Center of Excellence in Analytical Chemistry - University of Sindh, Jamshoro, Pakistan , Bhatti, Ashfaque Ali National Center of Excellence in Analytical Chemistry - University of Sindh, Jamshoro, Pakistan , Bhatti, Asif Ali National Center of Excellence in Analytical Chemistry - University of Sindh, Jamshoro, Pakistan , Ocak, Ümmühan Department of Chemistry - Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey , Ocak, Miraç Department of Chemistry - Faculty of Sciences, Karadeniz Technical University, Trabzon, Turkey
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.
Keywords :
Calix[4]arene , Fluorescence , Metals Complex , FT-IR spectroscopy
