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Transition Metal Ion-binding Properties of a 14-Membered N2O2S2- Macrobicyclic Ligand
Authors:ÜMMÜHAN OCAK  HALIT KANTEKIN  YA?AR GÖK  H BASIR ?ENTÜRK
Institution:(1) Department of Chemistry, Faculty of Arts and Sciences, Karadeniz Technical University, 61080 Trabzon, Turkey
Abstract:The selective liquid–liquid extraction of various transition metal cations from the aqueous phase to the organic phase was carried out using a 14-membered N2O2S2-macrobicycle. Metal picrates such as Pb2+, Co2+, Zn2+, Ni2+,Cu2+ and Cd2+ were used in this extraction studies. It was found that the ligand showed moderate selectivity towards Pb2+ only among the other metals. The extraction constant (log K ex) was determined to be 13.8 for Pb2+ complex.
Keywords:extraction constant  liquid–  liquid extraction  N2O2S2-macrobicycle  selective extraction  transition metal cation
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