Thermal decomposition of lanthanide(III) complexes of bis-(salicylaldehyde)-1,3-propylenediimine Schiff base ligand
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Ziyad Taha
,
Abdulaziz Ajlouni
Abstract
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.
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© 2012 Institute of Chemistry, Slovak Academy of Sciences
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Articles in the same Issue
- Characterisation of VOC composition of Slovak monofloral honeys by GC×GC-TOF-MS
- Combustion-derived CdO nanopowder as a heterogeneous basic catalyst for efficient synthesis of sulfonamides from aromatic amines using p-toluenesulfonyl chloride
- Molybdate sulfonic acid: preparation, characterization, and application as an effective and reusable catalyst for octahydroxanthene-1,8-dione synthesis
- Enantioselective extraction of hydrophilic 2-chloromandelic acid enantiomers by hydroxypropyl-β-cyclodextrin: experiments and modeling
- Attrition of dolomitic lime in a fluidized-bed reactor at high temperatures
- Improvement of aquatic pollutant partition coefficient correlations using 1D molecular descriptors — chlorobenzene case study
- Mercury characterisation in urban particulate matter
- Thermal decomposition of lanthanide(III) complexes of bis-(salicylaldehyde)-1,3-propylenediimine Schiff base ligand
- Effect of hyamine on electrochemical behaviour of brass alloy in HNO3 solution
- Calorimetric determination of the effect of additives on cement hydration process
- Entrapment of ethyl vanillin in calcium alginate and calcium alginate/poly(vinyl alcohol) beads
- Facile synthesis of 3-substituted quinazoline-2,4-dione and 2,3-di-substituted quinazolinone derivatives
- Virtual screening of imidazole analogs as potential hepatitis C virus NS5B polymerase inhibitors
- A new phenanthroindolizidine alkaloid from Tylophora indica
