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E-Journal of Chemistry
Volume 8, Issue 2, Pages 495-506

Spectrophotometric Study of Complexation Between Some New N2O2-Schiff Bases and Some Transition Metal Ions in Nonaqueous Solvents

A. Shokrollahi, M. Ghaedi, M. Montazerozohori, A. H. Kianfar, H. Ghaedi, N. Khanjari, S. Noshadi, and S. Joybar

Chemistry Department Yasouj University, Yasouj, 75918-74831, Iran

Received 27 April 2010; Accepted 17 July 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.


The complexation reaction between some transition and heavy metal cations and some new N2O2 Schiff bases in acetonitrile (AN) or methanol (MeOH) as nonaqueous solvents at 25 °C and 0.05 M tetraethylammonium perchlorate (TEAP) were investigated by spectrophotometric method. The stoichiometry and overall stability constants of complexes have been evaluated by computer refinement of abs-mole ratio data, using the KINFIT program. All investigated metal ions form 1:1 ML, 1:2 ML2 or 2:1 M2L complexes with studied ligands. The effect of structure on the complexation was investigated.