Tabakci, BegumAlici, OnderKaratas, Ibrahim2020-03-262020-03-2620130039-91401873-3573https://dx.doi.org/10.1016/j.talanta.2012.12.021https://hdl.handle.net/20.500.12395/29131We synthesized a series of 4-tert-butylcalix[4]arene nitriles (5-7) by the reaction of 4-tert-butylcalix[4]arene (1) with 4'-(6-bromohexyloxy)biphenyl-4-carbonitrile (2), 4'-(10-bromode-cyloxy)biphenyl-4-carbonitrile (3), and 4'-(12-bromododecyloxy)biphenyl-4-carbonitrile (4) and characterized their structures, respectively. The extraction abilities of newly synthesized 5-7 toward some selected heavy metal cations, such as Co2+, Cu2+, Ni2+, Zn2+, Cd2+, and Hg2+, were first evaluated and compared by the solvent extraction method. The extraction results revealed that 5-7 were efficient and selective cation receptors for Hg2+ over-selected cations. On the other hand, the complexation behavior of Hg2+ with 5-7 was also investigated by using NMR, UV-vis, and IR spectroscopic methods. (C) 2012 Elsevier B.V. All rights reserved.en10.1016/j.talanta.2012.12.021info:eu-repo/semantics/closedAccessCalix[4]areneNitrileMercurySelective extractionCation receptorArticle106929623598100Q1WOS:000319088600013Q1