SYNTHESIS AND CHARACTERIZATION OF 5-SALICYLIDENEIMINO-1,10-PHENANTHROLINE AND ITS Ni(II), Co(II) COMPLEXES


Elmali F. , DEMİRHAN N. , Duman H., Avciata U.

REVIEWS IN INORGANIC CHEMISTRY, vol.29, no.4, pp.241-253, 2009 (Journal Indexed in SCI) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 29 Issue: 4
  • Publication Date: 2009
  • Doi Number: 10.1016/j.saa.2008.11.004
  • Title of Journal : REVIEWS IN INORGANIC CHEMISTRY
  • Page Numbers: pp.241-253

Abstract

As a multidonor ligand with phenanthroline and salicylaldimine functionalities on the same molecule, 5-salicylideneimino-1,10-phenanthroline (LH) has been synthesized by the reaction of 5-amino-1,10-phenanthroline with salicylaldehyde and its metal complexes with Ni(II) and Co(II) have been prepared. The structures of the ligand and its complexes have been characterized by elemental analyses, FTIR, H-1 NMR, C-13 NMR, LC-MS spectra, magnetic measurements and TGA-DSC-DTG techniques. The ligand, Ni(II) and Co(II) complexes have been studied potentiometrically. The metal to ligand ratio of the Ni(II) and Co(II) complexes was found to be 1:2. Protonation constants of LH2+ which have been determined by potentiometric titration are log K-1 = 10.99, log K-2 = 8.00.