A new calix[4]arene Schiff base sensor for Hg2+ and Au3+


Memon S., Bhatti A. A. , Bhatti A. A. , OCAK Ü. , OCAK M.

JOURNAL OF THE IRANIAN CHEMICAL SOCIETY, cilt.13, ss.2275-2282, 2016 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 13 Konu: 12
  • Basım Tarihi: 2016
  • Doi Numarası: 10.1007/s13738-016-0946-3
  • Dergi Adı: JOURNAL OF THE IRANIAN CHEMICAL SOCIETY
  • Sayfa Sayıları: ss.2275-2282

Özet

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 x 10(-5) and 1.0 x 10(-6) M, respectively. Receptor forms 1:1 stoichiometric complex with both metals and their binding constants were calculated as 7.9 x 10(3) M-1 for Hg2+ and 5.7 x 10(3) M-1 for Au3+. Complexes were also characterized through FT-IR spectroscopy.