Ion-pair extraction of transition metal cations from aqueous media using novel N2O2-macrocyclic crown ligands


OCAK M. , ALP H. , KANTEKİN H. , KARADENIZ H., OCAK U.

JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY, vol.60, pp.17-24, 2008 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 60
  • Publication Date: 2008
  • Doi Number: 10.1007/s10847-007-9347-7
  • Title of Journal : JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
  • Page Numbers: pp.17-24

Abstract

Three new macrocyclic crown ether ligands containing nitrogen-oxygen donor atoms were designed and synthesized from 1,4-bis(2'-formylphenyl)-1,4-dioxabutane and 4-nitro-o-phenylenediamine. Ion-pair extraction of metal picrates such as Ag+, Hg2+, Cd2+, Zn2+, Cu2+, Ni2+, Mn2+, Co2+, and Pb2+ from aqueous phase to the organic phase was carried out using the novel ligands. The solvent effect over the metal picrate extractions was investigated at 25 +/- 0.1 degrees C by using UV-visible spectrometry. The extractability and the values of the extraction constants (log K-ex) were determined for the extracted complexes.