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E-Journal of Chemistry
Volume 8, Issue 1, Pages 415-420

Synthesis and Structural Studies of First Row Transition Metal Complexes with Tetradentate ONNO Donor Schiff Base Derived from 5-Acetyl 2,4-dihydroxyacetophenone and Ethylenediamine

Pulimamidi Saritha Reddy,1 P. V. Ananthalakshmi,1 and V. Jayatyagaraju2

1Department of Chemistry, University College for Women, Osmania University, Hyderabad-500001, Andhra Pradesh, India
2Department of Chemistry, Addis Ababa University, P.O .Box 1176, Addis Ababa, Ethiopia

Received 22 April 2010; Accepted 21 May 2010

Copyright © 2011 Hindawi Publishing Corporation. 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.


Cr(III), Mn(II), Fe(III), Co(II), Ni(II), Cu(II) and Zn(II) complexes were prepared by template reaction of 5-acetyl 2,4-dihydroxyacetophenone (H2-ADA) and ethylenediamine in the presence of metal ions. The complexes have been characterized on the basis of elemental analyses, conductivity, magnetic moments, infrared and electronic spectral data. The Schiff base binds to metal ions in bis-multidentate ONNO mode leading to two dimensional Schiff base polymers. All the complexes have been assigned octahedral stereochemistry.