E-Journal of Chemistry (Jan 2012)

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

  • M. Montazerozohori,
  • S. Khani,
  • S. Joohari,
  • S. A. Musavi

DOI
https://doi.org/10.1155/2012/952926
Journal volume & issue
Vol. 9, no. 4
pp. 2483 – 2492

Abstract

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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.