Thermoanalytical investigations of 4-methylpiperazine-1-carbodithioic acid ligand and its iron(III), cobalt(II), copper(II) and zinc(II) complexes

被引：0
|
作者：
S. B. Kalia
G. Kaushal
K. Lumba
机构：
[1] Himachal Pradesh University,Department of Chemistry
来源：
Journal of Thermal Analysis and Calorimetry | 2008年 / 91卷
关键词：
Coats-Redfern method; DTA; metal ions; 4-methylpiperazine-1-carbodithioate; TG;
D O I：
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中图分类号：
学科分类号：
摘要：
The thermal decomposition studies on 4-methylpiperazine-1-carbodithioic acid ligand (4-MPipzcdtH) and its complexes, viz. [M(4-MPipzcdtH)n](ClO4)n (M=Fe(III) when n=3; M=Co(II), Cu(II) when n=2) and [Zn(4-MPipzcdtH)2]Cl2 have been carried out using non-isothermal techniques (TG and DTA). Initial decomposition temperatures (IDT), indicate that thermal stability is influenced by the change of central metal ion. Free acid ligand exhibits single stage decomposition with a sharp DTA endotherm. Complexes, [M(4-MPipzcdtH)n](ClO4)n undergo single stage decomposition with detonation and give rise to very sharp exothermic DTA curves while the complex [Zn(4-MPipzcdtH)2]Cl2 shows three-stage decomposition patterns.
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页码：609 / 613
页数：4
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