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化学学报
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化学学报 ›› 1994, Vol. 52 ›› Issue (7): 676-682. 上一篇    下一篇

研究论文

邻香兰素与邻苯二胺双Schiff碱镍配合物的合成, 晶体结构和热分析

王红;李淑兰;刘德信;崔学桂;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:1994-07-15

The synthesis, crystal structure and thermoanalysis of 3 -methoxysalicylaldehyde 1, 2-diaminobenzene nickel(II) schiff ase complex

WANG HONG;LI SHULAN;LIU DEXIN;CUI XUEGUI;LI XIAOYAN;YANG ZHAOHE   

  • Published:1994-07-15

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403

被引次数

13 | 3

合成所得的邻香兰素(2-羟基-3-甲氧基苯甲醛)与邻苯二胺双Schiff碱Ni(II)配合物的晶体[Ni(C~8H~7O~2)2(C~6H~4N~2)].H~2O, 空间群P2~1/n, a=0.8854(2),b=1.9067(5), c=1.1807(4)nm, β=99.43(2)°; Z=4; 结构解析最后的偏正因子R=0.044, R~W=0.052。标题配合物的热分解反应动力学方程式为: dα/dt=A.e^-E/RT.(3/2).(1-α)[-ln(1-α)]^1/3; 热分解反应动力学补偿效应表达式为:lnA=0.1800E+0.0789。

关键词: 晶体结构测定, 热分析, 反应动力学, Ｘ射线衍射分析, 计算机应用, 电子密度, 镍络合物, 席夫碱, 热分解, 香兰素

The synthesis, crystal structure and thermoanal. of 3-methoxysalicylaldehyde 1,2-diaminobenzene Ni(II) complex (I.H2O) were reported. The complex lies in monoclinic, space group P21/n with a 0.8854(2), b 1.9067(5), c 1.1807(4) nm, b 99.43(2)? Z = 4, final R = 0.044, Rw = 0.052. Kinetic parameters were obtained from anal. of the TG, DTG curves by integral's method and differential's method. The possible reaction mechanism was suggested by comparison of the kinetic parameters. The kinetic equation may be expressed as: da/dt = A譭-E/RT?3/2)?1-a)[-ln(1-a)]1/3. The math. expression of the kinetic compensation effect of the thermal decomposition reaction had been obtained.

Key words: CRYSTAL STRUCTURE DETERMINATION, THERMAL ANALYSIS, REACTION KINETICS, X-RAY DIFFRACTION ANALYSIS, COMPUTER APPLICATIONS, ELECTRON DENSITY, NICKEL COMPLEX, SCHIFF BASE, THERMAL DECOMPOSITION, VANILLIN

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