University of Novi Sad, Faculty of Sciences Institute of Chemistry 21000 Novi Sad Trg D. Obradovicá 3 Yugoslavia 21000 Novi Sad Trg D. Obradovicá 3 Yugoslavia
Technical University of Budapest Research Group for Technical Analytical Chemistry of the Hungarian Academy of Sciences at the Institute for General and Analytical Chemistry H-1521 Budapest H-1521 Budapest
Technical University of Budapest Institute for General and Analytical Chemistry H-1521 Budapest Hungary H-1521 Budapest Hungary
Faculty of Metallurgy and Technology Podgorica Yugoslavia Podgorica Yugoslavia
Complexes represented by the general formula [MCl2L2] (M(II)=Zn, Mn, Co) and complexes of [Cu3Cl6L4] and CuSO4L24H2O, CoSO4L23H2O, [ZnSO4L3] where L stands for 3-amino-5-methylpyrazole were prepared. The complexes were characterized by elemental analysis, FT-IR
spectroscopy, thermal (TG, DTG, DSC and EGA) methods and molar conductivity measurements. Except for the Zn-complexes, the
magnetic susceptibilities were also determined.
Thermal decomposition of the sulphato complexes of copper(II) and cobalt(II) and the chloro complexes of cobalt(II) and manganese(II)
resulted in well-defined intermediates. On the basis of the IR spectra and elemental analysis data of the intermediates a
decomposition scheme is proposed.