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.