Evaluation of Complexation Behavior of Calix[4]arene Derivative

  • Mansoor Ahmed Qazi National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Pakistan
  • Imdadullah Qureshi National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Pakistan
  • Shahabuddin Memon National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Pakistan
  • M. Sharif National Center of Excellence in Analytical Chemistry, University of Sindh, Jamshoro-76080, Pakistan

Abstract

In this article we have explored the solvatochromic behavior including solvent selection, time study and complexation ability of 5,11,17,23-Tetrakis(N-piperidinomethyl)-25,26,27,28tetrahydroxycalix[4]arene (3). The complexation behavior of 3 toward the selected transition metals has been explored through FT-IR, UV-visible and fluorescence spectroscopic techniques. It has been found that the ligand 3 has remarkable complexation ability for all selected transition metal (Cd2+, Cu2+, Ni2+, Co2+, Pb2+, Hg2+) ions used in the experiment with exceptionally high affinity for Hg2+ ions. Besides this, by applying method of continuous variation, i.e. Job’s method; the stoichiometric ratio for the complexation between 3 and Hg2+ ion in acetonitrile has been determined, which indicates that 3 forms a 1:1 metal:ligand complex. The strong complexation behavior of 3 for Hg2+ ions was also confirmed by FT-IR and fluorescence spectroscopy. Consequently, it has been deduced that 3 is a versatile compound and can be used in diverse fields such as analytical/environmental chemistry and sensor technology.

Published
Jun 1, 2010
How to Cite
QAZI, Mansoor Ahmed et al. Evaluation of Complexation Behavior of Calix[4]arene Derivative. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 11, n. 1, june 2010. ISSN 2221-5255. Available at: <http://pjaec.pk/index.php/pjaec/article/view/61>. Date accessed: 23 nov. 2017.