The (CF3C(O)NH)(C6H5CH2NH)2P(O) phosphoric triamide as a novel carrier with excellent efficiency for Cu(ii) in a liquid membrane transport system |
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| Authors: | Setareh Akbari,Razieh Sanavi Khoshnood,Fatemeh Karimi Ahmadabad,Mehrdad Pourayoubi,Michal Duš ek,Ekaterina S. Shchegravina |
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| Affiliation: | Department of Chemistry, Mashhad Branch, Islamic Azad University, Mashhad Iran.; Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad Iran.; Institute of Physics of the Czech Academy of Sciences, Na Slovance 2, 182 21 Prague 8, Czech Republic ; Department of Chemistry, Lobachevsky State University of Nizhni Novgorod, Gagarin Avenue 23, Nizhny Novgorod Russian Federation |
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| Abstract: | Transport of Ag(i), Cd(ii), Co(ii), Cu(ii), Ni(ii), Pb(ii) and Zn(ii) cations across a bulk liquid membrane (BLM) containing N,N′-dibenzyl-N′′-(2,2,2-trifluoroacetyl)-phosphoric triamide (PTC) as a new carrier is studied by atomic absorption spectrometry. The results show selective and efficient transport of the copper(ii) cation from aqueous solution in the presence of the other cations. Various factors are optimized in order to obtain maximum transport efficiency. The PTC ligand is characterized by single crystal X-ray diffraction analysis, IR, NMR (19F, 31P, 1H, 13C) and mass spectroscopy. The complex formation reaction between copper(ii) and PTC is studied by a conductometric method, which shows the 1 : 1 stoichiometry for ligand and copper(ii).Selective transport of Cu(ii) cation in the presence of six other cations across a bulk liquid membrane containing a novel phosphoric triamide carrier is studied. |
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