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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (6): 583-589. 上一篇    下一篇

研究论文

[Cu(NBUOCTB)](ClO~4)~2.2DMF的晶体结构和热分解反应动力学

李晓燕;杨兆荷   

  1. 山东大学化学系;山东大学晶体材料研究所
  • 发布日期:1995-06-15

Crystal structure and thermal decomposition kinetics of [Cu(NBUOCTB)](ClO~4)~2.2DMF

LI XIAOYAN;YANG ZHAOHE   

  • Published:1995-06-15

PDF

417

被引次数

10

本文制备了二(N,N-二甲基甲酰胺)合高氯酸N,N,N',N"-四[(1'-正丁基-2'-苯并咪唑)甲基]-1,2-环己二胺合铜(Ⅱ), [Cu(NBUOCTB)](ClO~4)~2.2DMF。测定表明其晶体属正交晶系, 空间群为Pban, a=1.2553(2), b=2.0022(8),c=2.5687(5)nm, V=6.456(4)nm^3, Mr=1267.84, Z=4, Dx=1.304g/cm^3,μ=4.81cm^-^1, F(000)=2684。利用TG-DTG技术研究了配合物的热分解过程。采用积分法和微分法相结合方案, 对实验数据进行分析。推断第一步热分解过程为成核和生长机理(n=1), 符合Avrami-Erofeev方程; 第二步热分解过程为二级化学反应机理。

关键词: 晶体结构, 铜络合物, 热分解, 动力学研究

The coordination compound of Cu(Ⅱ) with N,N,N',N"-tetra[(1'-n- butyl-2'-benzimidazol) methyl]-trans-1,2-diaminocyclohexane (NBUOCTB), [Cu(NBUOCTB)](ClO~4)~2.2DMF, was prepared. The compound crystallizes in space group Pban with a=1.2553(2), b=2.0022(8), c=2.5687(5)nm, Z=4. The thermal decomposition process of the compound has also been studied using TG-DTG techniques under non-isothermal condition. The experimental data were analyzed through the combination of integral and differential methods. The first thermal decomposition stage belongs to "Coring and Growth (n=1)" mechanism and conforms to Avrami-Erofeev equation. The second stage is "Two-order Chemical Reaction".

Key words: CRYSTAL STRUCTURE, COPPER COMPLEX, THERMAL DECOMPOSITION, KINETIC STUDY

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