Synthesis,characterization and extraction properties of calix[4]crown with amine units and study of its complexes with Cu(II) |
| |
Authors: | Sara Hosseinpour Behrouz Shaabani Zahra Hosseinpour |
| |
Institution: | 1.Department of Inorganic Chemistry, Faculty of Chemistry,University of Tabriz,Tabriz,Iran |
| |
Abstract: | In this work, we have focused on the synthesis of p-tert-butyl calix4]crown with amine units (H 3 L) as a class of selective receptors for metal ions. The macrocyclic ligand (H 3 L) with N2O7 donors was synthesized via condensation between 1,3-diaminocalix4]arene and 2-3-(2-formylphenoxy)-2-hydroxypropoxy] benzaldehyde, followed by reduction of the Schiff base product in situ with sodium borohydride, then it was characterized by FT-IR, 1H NMR and X-ray crystallography. Two Cu(II) complexes were prepared from the reaction of H 3 L with Cu(II) salts (CuX2, X = ClO4 ? and Cl?). FT-IR, UV–Vis, elemental analysis, molar conductivity and cyclic voltammetry techniques were used for study and characterization of these complexes. On the basis of liquid–liquid extraction experiments, ligand H 3 L indicated good affinity toward Pb2+ and Cu2+. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|