高等学校化学学报

高等学校化学学报 ›› 1993, Vol. 14 ›› Issue (7): 897.

• 研究论文 • 上一篇    下一篇

邻香兰素乙二胺合镍(Ⅱ)配合物的合成、晶体结构及热分解动力学的研究

刘德信, 李淑兰, 崔学桂, 李晓燕   

  1. 山东大学化学系, 济南 250100
  • 收稿日期:1992-10-15 修回日期:1993-01-18 出版日期:1993-07-24 发布日期:1993-07-24
  • 通讯作者: 刘德信
  • 作者简介:第一作者:男, 52岁, 教授.

Studies on Synthesis, Crystal Structure and Kinetics of Thermal Decomposition of o-Vanillin Ethylenediamine Nickel (Ⅱ)

LIU De-Xin, LI Shu-Lan, GUI Xue-Gui, LI Xiao-Yan   

  1. Department of Ghemistry, Shandong University, Jinan, 250100
  • Received:1992-10-15 Revised:1993-01-18 Online:1993-07-24 Published:1993-07-24

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被引次数

2

摘要： X射线单晶衍射结果表明,邻香兰素乙二胺合镍(Ⅱ)(Ni-Vaniethy)C18H18N2NiO4·H2O为正交晶系,空间群Pbna,晶胞参数a=1.1931(3)nm,b=1.5233(4)nm,c=1.9592(6)nm,V=3.561nm3,M=403.08,Z=8,Dc=1.50g/cm3,μ=11.23cm-1,F(000)=1680,最后偏离因子R=0.071.利用TG、DTG曲线对配合物进行了非等温动力学研究,得到了其热分解动力学参数.并探讨了反应的可能机理.

关键词: Schiff碱配合物, 晶体结构, 热分解动力学

Abstract: The crystal of o-vanillin ethylenediamine Nickel (Ⅰ) (Ni-Vaniethy) C18H18N2NiO4·H2Owas synthesized and its structure was determined by single crystal X-ray diffraction method.The complex belongs to the orthorhombic system, space group Pbna with cell parameters of a=1.1931(3) nm, b=1.5233(4) nm, c=1.9592(6) nm, V=3.561 (nm)3, M=403.08, Z=8, Dc=1.50 g/cm3, μ-11.23 cm-1, F(000)=1680, final R=0.071 for 1200 unique reflections [I≥3(σ)].The kinetics of thermal decomposition reaction of the complex was studied under a non-isothermal condition by TG.The kinetic parameters were obtained from the analysis of TG, DTGcurves by integral and differential methods.The functions of thermal decomposition reaction mechanism are:f(a)=2(1-a)1/2,g(a)=1-(1-a)1/2.

Key words: Schiff base complex, Crystal structure, Kinetics of thermal decomposition reaction

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