Article thumbnail

Mixed-Ligand Complexes of Manganese(II), Nickel(II), Cobalt(II), Zinc(II), and Copper(II) with Cytosine and Threonine

By Molodkin A.K., Esina N.Ya. and Akhussi A.L.


The M(II)-threonine-cytosine-water systems, where M(II) is Mn(II), Co(II), Ni(II), Zn(II), or Cu(II), were studied potentiometrically. The 1 : 1 : 1 mixed-ligand complexes were obtained, and their formation constants logβ were determined to be 13.41 (Cu), 12.52 (Zn), 10.46 (Ni), 9.53 (Co), and 9.10 (Mn). Mixed-ligand complexes of composition M(C4H8NO3)(C4H5N 3O)(OH) · nH2O (M = Mn, Co, or Ni, n = 4; M = Cu or Zn, n = 2) were prepared from aqueous solutions of the ligands and metal hydroxides. When heated, the complexes decompose to the oxides and elemental carbon. The occurrence and type of coordination of the organic ligands to metal ions were determined by IR. spectroscopy (400-4000 cm-1) to be chemical equation presented

Publisher: IAPC Nauka/Interperiodica
Year: 2020
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.