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E-Journal of Chemistry
Volume 9 (2012), Issue 4, Pages 2483-2492

Synthesis, Spectral and Thermal Behavior of Some New Four Coordinated Complexes

1Department of Chemistry, Yasouj University, Yasouj, 7591874831, Iran
2Department of Basic Science, Yasouj Branch, Islamic Azad University, Yasouj, Iran

Received 18 August 2011; Accepted 4 October 2011

Copyright © 2012 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.


A new symmetric bidentate Schiff base N, N′ bis(4-fluorobenzal-dehydene)-1,2-diaminoethane(L) and its complexes with general formula MLX2 (M= Zn(II), Cd(II) and Hg(II) and X=chloride, bromide, iodide, thiocyanate and azide) have been prepared. The ligand and complexes have been established by microanalysis, electronic, FT-IR, 1H and 13C NMR spectra, and by molar conductivity measurements. All compounds are non-electrolytes in chloroform or DMSO-d6. The thermal behavior of the complexes shows weight loss by decomposition of the anions and ligand segments in the subsequent steps. Some activation thermodynamic parameters such as E*, ∆H*, ∆S* and ∆G* were calculated from thermal analysis.