Synthesis, characterization and thermodecomposition kinetics of Sm(III) complex with unsymmetrical Schiff base zwitterion ligand

被引：1

作者：

Fan, YH ^{[1
]}

Bi, CF ^{[1
]}

Liu, SQ ^{[1
]}

Zou, YN ^{[1
]}

Zhang, DM ^{[1
]}

Li, YY ^{[1
]}

机构：

[1] Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266003, Peoples R China

来源：

CHINESE JOURNAL OF CHEMISTRY | 2006年 / 24卷 / 03期

关键词：

unsymmetrical Schiff base; samarium(III) complex; thermal decomposition; non-isothermal kinetics;

D O I：

10.1002/cjoc.200690071

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A new unsymmetrical Schiff base zwitterion (LLi) was synthesized using L-lysine, salicylaldehyde and 2-hydroxy-1-naphthaldehyde. Samarium(Ell) complex of this ligand [SmL(NO3)]NO3 center dot 2H(2)O has 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 d alpha/dt= 3/2Ae(-E/RT)(1-alpha)(2/3)[1 -(1 -alpha)(1/3)](-1). The kinetic parameters (E, A), activation entropy Delta S-not equal and activation free-energy Delta G(not equal) were also gained.

引用

页码：371 / 374

页数：4

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