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化学学报
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化学学报 ›› 1995, Vol. 53 ›› Issue (4): 343-348. 上一篇    下一篇

研究论文

邻香兰素L-甲硫氨酸Schiff碱二吡啶合锌(Ⅱ)配合物的合成、晶体结构和热分解动力学

李淑兰;刘德信;周建华;孟凡芹;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:1995-04-15

Synthesis, crystal structure and kinetics of thermal decomposition of o-vanillin L-methionine Schiff base dipyridine Zinc(Ⅱ)

LI SHULAN;LIU DEXIN;ZHOU JIANHUA;MENG FANQIN;YANG ZHAOHE   

  • Published:1995-04-15

PDF

421

被引次数

33 | 6

X射线单晶结构分析结果表明: 标题化合物晶体-ZnVAL C~2~8H~3~0N~4O~4SZn属正交晶系, 空间群P2~12~12~1, a=0.9259(2), b=1.4409(4), c=2.1046(8)nm, Z=4,最终因子Rw=0.080。利用热重分析对配合物第一步热分解过程进行了非等温动力学研究, 探讨了反应的可能机理。得到了其相应的动力学参数以及非等温动力学方程。

关键词: 晶体结构, 席夫碱, 分解动力学, 锌配合物

The crystal of o-vanillin L-methionine dipyridine Zinc(Ⅱ)-ZnVAL C~2~8H~3~0N~4O~4SZn was synthesized and its structure was determined by single crystal X-ray diffraction method. The complex is orthorhombic system, space group P2~12~12~1 with a=0.9259(2), b=1.4409(4), c=2.1046(8)nm, Z=4, final Rw=0.080 for 1378 unique reflections Ⅰ≥3σ(Ⅰ). 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, DTG curves by integral and differential methods. The kinetic equation of thermal decomposition reaction was obtained too.

Key words: CRYSTAL STRUCTURE, SCHIFF BASE

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