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  • 1 University of Szeged Department of Inorganic and Analytical Chemistry Szeged Hungary P.O. Box 440 6701 Szeged Hungary P.O. Box 440 6701
  • | 2 Timişoara Institute for Chemistry of Romanian Academy Timişoara Romania 1900 24, Bul. Mihai Viteazu Timişoara Romania 1900 24, Bul. Mihai Viteazu
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Abstract  

The thermal behaviour of the mixed-ligand complexes of cobalt(II) and copper(I) ions with antipyrine derivatives of 1,2-ethanediamine or piperazine (BAMP and TAMEN), with water and with 2-mercapto-benzothiazole (Hmbt) was investigated. The complexes contain 2-mercaptobenzothiazole (Hmbt, in the case of cobalt(II) ion) or dimercaptobenzothiazine (mbt–mbt, in the case of copper(I) ion) molecules as ligands and perchlorate (ClO4) or thiocyanate (SCN – ) ion as counterion. By heating, water and ligands release the solid phase at lower temperature. At higher temperatures process of different organic reactions of ligands (e.g. polymerization, polycondensation) could be suggested to interpret the relative high final mass values.