Thermal and spectral studies of 3- N-methyl-morpholino-4-amino-5-mercapto-1,2,4-triazole and 3- N-methyl-piperidino-4-amino-5-mercapto-1,2,4-triazole complexes of cobalt(II), nickel(II) and copper(II)

Novel complexes obtained by 3- N-methyl-morpholino-4-amino-5-mercapto-1,2,4-triazole and 3- N-methyl-piperidino-4-amino-5-mercapto-1,2,4-triazole with Co(II), Ni(II) and Cu(II) have been synthesized and characterized by elemental analysis, electronic, IR, ESR and TG studies. TG studies of these comp...

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Bibliographic Details
Published in:Thermochimica acta 1999, Vol.325 (1), p.35-41
Main Authors: Maravalli, P.B, Goudar, T.R
Format: Article
Language:English
Subjects:
Chemistry
Complexes
Coordination compounds
Exact sciences and technology
Inorganic chemistry and origins of life
Preparations and properties
Synthesis
Thermal degradation
Thermodynamic
Thermogravimetry
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Summary:Novel complexes obtained by 3- N-methyl-morpholino-4-amino-5-mercapto-1,2,4-triazole and 3- N-methyl-piperidino-4-amino-5-mercapto-1,2,4-triazole with Co(II), Ni(II) and Cu(II) have been synthesized and characterized by elemental analysis, electronic, IR, ESR and TG studies. TG studies of these complexes showed that thermal degradation proceeds in two steps. Kinetic and thermodynamic parameters were computed from the thermal decomposition data. The activation energy of both the thermal degradation steps is in the 0.22–44.67 kJ mol −1 range. Based on the spectral and TG studies, an octahedral geometry can be proposed for the above complexes.
ISSN:0040-6031
1872-762X
DOI:10.1016/S0040-6031(98)00548-6