期刊名称：Pakistan Journal of Analytical & Environmental Chemistry
印刷版ISSN：1996-918X
电子版ISSN：2221-5255
出版年度：2010
卷号：11
期号：1
页码：53-58
语种：English
出版社：National Centre of Excellence in Analytical Chemsitry
摘要：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 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..
