Thermal Behaviors and Decomposition Kinetics of a Ni(II) Complex with 2-Pyridinecarboxylic Acid.
- Resource Type
- Article
- Authors
- Shen, Xiao-Qing; Li, Zhong-Jun; Niu, Ya-Li; Qiao, Hai-Bin
- Source
- Synthesis & Reactivity in Inorganic, Metal-Organic, & Nano-Metal Chemistry. 2009, Vol. 39 Issue 1, p55-59. 5p. 2 Diagrams, 4 Charts, 4 Graphs.
- Subject
- *THERMAL analysis
*ANALYTICAL chemistry
*ATMOSPHERE
*CHEMICAL bonds
*PHYSICAL & theoretical chemistry
- Language
- ISSN
- 1553-3174
A Ni(II) complex with 2-pyridinecarboxylic acid, [Ni (C6H4NO2)2(H2O)2]· 2H2O, has been synthesized and its thermal decomposition in N2 atmosphere has been investigated by TG-DTG and DSC. The results show that the thermal decomposition process of this complex can be divided into two transitions: one is assigned to water loss (involving crystal lattice water and coordinated water) and another to the main decomposition of destroying Ni-N bonds, Ni-O bonds and pyridine ring. Thermal decomposition kinetic analysis indicates that both the transitions are double-step following reactions with different singular reaction types. The kinetic parameters of thermal decomposition have been obtained by means of model-free method together with multivariate non-linear regression. [ABSTRACT FROM AUTHOR]