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, cilt.60, ss.17-24, 2008 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 60
  • Basım Tarihi: 2008
  • Doi Numarası: 10.1007/s10847-007-9347-7
  • Dergi Adı: JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY
  • Sayfa Sayıları: ss.17-24

Özet

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.