Table of Contents
Journal of Inorganic Chemistry
Volume 2013, Article ID 104979, 11 pages
Research Article

Synthesis, Characterization, and Electrochemical Behaviour of Cobalt(II) and Nickel(II) Complexes with Chelating Ligand 4,4′-(Biphenyl-4,4′-diyldinitrilo)dipentan-2-one

1Laboratoire de Chimie, Ingénierie Moléculaire et Nanostructures, Département de Génie des Procédés, Faculté de Technologie, Université Ferhat Abbas, 19000 Sétif, Algeria
2Chimie de Coordination, Faculté de Pharmacie, Université d’Angers, 16 boulevard Daviers, 49045 Angers Cedex 01, France

Received 14 April 2013; Revised 30 June 2013; Accepted 1 July 2013

Academic Editor: Guido Crisponi

Copyright © 2013 Lakhdar Sibous et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


4,4′-Diaminobiphenyl reacts with 2,4-pentanedione in absolute ethanol in a molar ratio 1 : 2 to form mainly the product of [1 + 2] condensation, 4,4′-(biphenyl-4,4′-diyldinitrilo)dipentan-2-one (H2L). The Schiff base was used as tetradentate chelating ligand to coordinate and chlorides leading to complexes where the ratio of metal ligand was found to be 2 : 1 or 2 : 2. All the synthesized products were characterized by elemental analysis, infrared, electronic, and mass spectroscopy, 1H NMR, and DSC. The electrochemical behaviour of the ligand and its complexes in DMF is also investigated.