Synthesis, characterization and thermal study of some tetradentate Schiff base transition metal complexes

  • Fatih Doğan
  • Mahmut Ulusoy
  • Ömer F. Öztürk
  • İsmet Kaya
  • Bekir Salih


Several mononuclear Co(II), Ni(II), Cu(II), and Fe(II) complexes of tetradentate salpren-type diimine, obtained from 3,5-di-tert-butyl-2-hydroxybenzaldehyde and 1,3-diaminopropane have been prepared and characterized by analytical, spectroscopic (FT-IR, UV–VIS) techniques, magnetic susceptibility measurements and thermogravimetric analyses (TG). The thermodynamic and thermal properties of complexes have been investigated. For further characterization Direct Insertion Probe-Mass Spectrometry (DIP-MS) was used and the fragmentation pattern and also stability of the ions were evaluated. The characterization of the end products of the decomposition was achieved by X-ray diffraction. The thermal stabilities of metal complexes of N,N′-bis(3,5-di-t-butylsalicylidene)-1,3-propanediamine ligand (L) were found as Ni(II) > Cu(II) > Co(II) > Fe(II).


Activation energy Sterically hindered diimine Thermal decomposition Transition metal complexes 



The authors gratefully acknowledge Basri Gülbakan and Ömür Çelikbıçak for helpful Mass Spectrometry measurements.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • Fatih Doğan
    • 1
  • Mahmut Ulusoy
    • 2
  • Ömer F. Öztürk
    • 3
  • İsmet Kaya
    • 3
  • Bekir Salih
    • 4
  1. 1.Faculty of Education, Secondary Science and Mathematics EducationÇanakkale Onsekiz Mart UniversityCanakkaleTurkey
  2. 2.Department of Chemistry, Faculty of ScienceEge UniversityIzmirTurkey
  3. 3.Department of ChemistryÇanakkale Onsekiz Mart UniversityCanakkaleTurkey
  4. 4.Department of Chemistry, Faculty of ScienceHacettepe UniversityAnkaraTurkey

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