Chemical Papers

, Volume 67, Issue 2, pp 194–201 | Cite as

Thermal decomposition of lanthanide(III) complexes of bis-(salicylaldehyde)-1,3-propylenediimine Schiff base ligand

  • Ziyad A. TahaEmail author
  • Abdulaziz M. Ajlouni
  • Jamil Al-Mustafa
Original Paper


The thermal decomposition of lanthanide complexes, with a general formula: [LnL(NO3)2](NO3), where Ln = La, Pr, Nd, Sm, Gd, Tb, Dy, and Er; and L = bis-(salicyladehyde)-1,3-propylenediimine Schiff base ligand, was studied by thermogravimetric (TG) and derivative thermogravimetric (DTG) techniques. The TG and DTG data indicated that all complexes are thermostable up to 398 K. The thermal decomposition of all Ln(III) complexes was a two-stage process and the final residues were Ln2O3 (Ln = La, Nd, Sm, Gd, Dy, Er), Tb4O7, and Pr6 O11. The activation energies of thermal decomposition of the complexes were calculated from analysis of the TG-DTG curves using the Kissinger, Friedman, and Flynn-Well-Ozawa methods.


lanthanide complexes thermal decomposition thermogravimetric analysis derivative thermogravimetric analysis 


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Copyright information

© Institute of Chemistry, Slovak Academy of Sciences 2012

Authors and Affiliations

  • Ziyad A. Taha
    • 1
    Email author
  • Abdulaziz M. Ajlouni
    • 1
  • Jamil Al-Mustafa
    • 1
  1. 1.Department of Applied Chemistry, Faculty of Arts and SciencesJordan University of Science and TechnologyIrbidJordan

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