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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)-25,26,27,28-tetrahydroxycalix[4]arene (3). The complexation behavior of 3toward the selected transition metals has been explored through FT-IR, UV-visibleand fluorescence spectroscopic techniques. It has been found that the ligand 3has 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 3and Hg2+ion in acetonitrile has been determined, which indicates that 3forms a 1:1 metal:ligand complex. The strong complexation behavior of 3for Hg2+ions was also confirmed by FT-IR and fluorescence spectroscopy. Consequently, it has been deduced that 3is a versatile compound and can be used in diverse fields such as analytical/environmental chemistry and sensor technology
Mansoor Ahmed Qazi, Imdadullah Qureshi,, Shahabuddin Memon, M. Sharif. (2010) Evaluation of Complexation Behavior of Calix[4]arene Derivative, Pakistan Journal of Analytical & Environmental Chemistry, Volume 11, Issue 1.
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