Synthesis and characterization of novel M(II) (M = Mn(II), Ni(II), Cu(II) or Zn(II)) complexes with tridentate N2,O-donor ligand (E)-2-amino-N’-[1-(pyridin-2-yl)- ethylidene]benzohydrazide

  • C. H. Kane
  • D. Tinguiano
  • F. B. Tamboura
  • I. E. Thiam
  • A. H. Barry
  • M. Gaye
  • P. Retailleau
Keywords: Schiff base, Phenolate, Manganese(II), Nickel(II), Copper(II), Zinc(II), Mononuclear complexes, X-Ray structure

Abstract

The coordination chemistry towards the M(II) metal centre (M = Mn, Ni, Cu or Zn) of the hydrazone ligand (E)-2-amino-N’-[1-(pyridin-2-yl)ethylidene]benzohydrazide (H3L) has been explored and complexes having formulae [Mn(H2L)2] (1), {[Ni(H2L)2].DMF.0.4H2O} (2), {[Cu2(H2L)2(µ-Cl)2].DMF} (3) and [Zn(H2L)2] (4) have been isolated and characterized by IR, UV-Visible spectroscopy, elemental analysis and X-ray crystal diffraction. Structural studies reveal that the mononuclear complexes (1), (2) and (4) adopt highly distorted octahedral geometries while the dinuclear complex (3) adopts a square pyramidal geometry around each copper(II) ion.

 

KEY WORDS: Schiff base, Phenolate, Manganese(II), Nickel(II), Copper(II), Zinc(II), Mononuclear complexes, X-Ray structure

 

Bull. Chem. Soc. Ethiop. 2016, 30(1), 101-110.

DOI: http://dx.doi.org/10.4314/bcse.v30i1.9

Published
2016-02-02
Section
Articles

Journal Identifiers


eISSN: 1726-801X
print ISSN: 1011-3924