Thermal decomposition of metallic diethanoldithiocarbamate complexes

Thermoanalytical study of metallic diethanoldithiocarbamate complexes of the type M[S 2CN 9C 2H 4OH) 2] n , where M=Cd 2+, Cr 3+, Mn 2+ and Bi 3+. The thermogravimetry (TG), derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC) techniques were used. The final decomposition pr...

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Bibliographic Details
Published in:Thermochimica acta 1999-03, Vol.328 (1), p.209-215
Main Authors: Marino, G., Chierice, G.Orivaldo, Pinheiro, C.Davidson, Gouveia Souza, A.
Format: Article
Language:English
Subjects:
Bismuth
Cadmium
Chemistry
Coordination compounds
Diethanoldithiocarbamate
Exact sciences and technology
Inorganic chemistry and origins of life
Preparations and properties
Thermal decomposition
Thermogravimetry
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Summary:Thermoanalytical study of metallic diethanoldithiocarbamate complexes of the type M[S 2CN 9C 2H 4OH) 2] n , where M=Cd 2+, Cr 3+, Mn 2+ and Bi 3+. The thermogravimetry (TG), derivative thermogravimetry (DTG) and differential scanning calorimetry (DSC) techniques were used. The final decomposition products found were metallic sulfides and oxides in nitrogen and air atmosphere, respectively, except for chromium complexes giving up Cr 2O 3 as residue in nitrogen atmosphere. This experimental evidence can be explained by means of a hydroxy complex also formed during the compound synthesis. This was confirmed by means of atomic absorption and TG experiments. The thermoanalytical results give rise to an inference about thermal stability and possible thermal decomposition mechanisms under nitrogen and air dynamic atmospheres.
ISSN:0040-6031
1872-762X
DOI:10.1016/S0040-6031(98)00644-3