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KMID : 1059519990430020167
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Journal of the Korean Chemical Society
1999 Volume.43 No. 2 p.167 ~ p.171
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Ag(I) Ion Selective Macrocyclic Ligands: The Complexation and Liquid Membrane Transport Phenomena of Benzylated Nitrogen-Oxygen Donor Macrocyclic Ligands
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Kim Jeong
Ahn Tae-Ho
Lee Myoung-Ro
Cho Moon-Hwan
Kim Si-Joong
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Abstract
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An investigation of the interaction of Co(II), Ni(II), Cu(II), Zn(II), Cd(II), Pb(II) and Ag(I) with two N,N'-dibenzylated nitrogen-oxygen mixed donor macrocyclic ligands, has been carried out. Tle log K values for the respective complexes in 95% methanol have been determined potentiometrically. Both ligands have formed stable complex with only Cu(II) and Ag(I) ion. Transport measurements in a bulk liquid membrane system exhibited a very high selectivity of Ag(I) ion over the other metal ions used.
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