1. Synthesis and thermal decomposition kinetics of La(III) complexwith unsymmetrical Schiff base ligand
- Author
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S. T. Xie, Yuhua Fan, C. F. Bi, Z. X. Gao, and Xiaoyin Zhang
- Subjects
Schiff base ,Ligand ,Inorganic chemistry ,Thermal decomposition ,Imine ,Kinetics ,chemistry.chemical_element ,Condensed Matter Physics ,Thermogravimetry ,chemistry.chemical_compound ,chemistry ,Lanthanum ,Physical chemistry ,Physical and Theoretical Chemistry ,Thermal analysis - Abstract
A new unsymmetrical solid Schiff base (LLi) was synthesized using L-lysine, o-vanillin and 2-hydroxy-l-naphthaldehyde. Solid lanthanum(III) complex of this ligand [LaL(NO3)]NO3·2H2O have been prepared and characterized by elemental analyses, IR, UV and molar conductance. The thermal decomposition kinetics of the complex for the second stage was studied under non-isothermal condition by TG and DTG methods. The kinetic equation may be expressed as: dα/dt=Ae−E/RT(1−α)2. The kinetic parameters (E, A), activation entropy ΔS# and activation free-energy ΔG# were also gained.
- Published
- 2008
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