Synthesis, characterization and structure effects on extractability and selectivity of N,N '-bis(salicylaldehydene) - 1,4-bis-(m-aminophenoxy)butane towards some divalent cations

Ziyadanogullari B., Cevizici D., Temel H., Guzel R.

ANNALI DI CHIMICA, cilt.97, sa.5-6, ss.287-294, 2007 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 97 Sayı: 5-6
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1002/adic.200790014
  • Dergi Adı: ANNALI DI CHIMICA
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.287-294
  • Yozgat Bozok Üniversitesi Adresli: Evet

Özet

The extraction of copper(II), nickel(II) and cobalt(II) from the aqueous phase with N,N'-bis(saticylaldehydene)-1,4-bis-(in-aminophenoxy)butane (NIAS), which was synthesized from 1,4-bis(m-aminophenoxy)butane and salicylaldehyde, was studied. Microanalytical data, elemental analysis, UV-visible H-1 and C-13 n.m.r. spectra and IR-spectra were used to confirm the structures. The extractability and selectivity of divalent cations were evaluated as a function of relationship between distribution ratio of the metal and pH or ligand concentration. Cu+2 showed the highest extractability and selectivity at pH 6.0, whereas Ni+2 and Co+2 showed at pH 9.2. The stoichiometries of the compounds formed were estimated to be CuL, CoL, NiL, where L is N,N'-bis(salicylaldehydene)-1,4-bis-(m-aminophenoxy)butane. It was concluded that MAS can effectively be used in solvent extraction of copper(II), nickel(II) and cobalt(II) from the aqeous phase to the organic phase.