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Journal of Thermal Analysis and Calorimetry

, Volume 56, Issue 2, pp 541–546 | Cite as

Thermoanalytical Investigation of Magnesium(II) Complexes with Pyridine as Bio-Active Ligand

  • S. C. Mojumdarl
  • M. Melník
  • E. Jóna
Article

Abstract

TG, DTA and other analytical methods were applied to investigate the thermal behaviour and structures of the compounds Mg(ClAc)2(Py)2·2H2O (I), Mg(Cl2Ac)2(Py)·H2O (II), Mg(Cl3Ac)2(Py)·6H2O (III) and Mg(SCN)2(Py)3·2H2O (IV), where ClAc=ClCH2COO, Cl2Ac=Cl2CHCOO, Cl3Ac=Cl3CCOO and Py=Pyridine. The compositions of the complexes and the solid-state intermediates and products of thermolysis were identified by means of elemental analysis. Possible schemes of destruction of the complexes are suggested. The final products of the thermal decompositions were MgO (I–III) and MgS (IV). The IR data suggest unidentate coordination of the carboxylate ions to Mg(II) in complexes I–III. Py is coordinated to the Mg(II) through the nitrogen atom of its heterocyclic ring.

acetate DTA and IR halogenoacetates Mg(II) pyridine SCN TG 

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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • S. C. Mojumdarl
    • 1
  • M. Melník
    • 2
  • E. Jóna
    • 3
  1. 1.Institute of Inorganic ChemistrySlovak Academy of SciencesBratislava
  2. 2.Department of Inorganic Chemistry, Faculty of Chemical TechnologySlovak University of TechnologyBratislava
  3. 3.Department of ChemistryFaculty of Industrial TechnologiesPúchovSlovakia

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