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化学学报
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化学学报 ›› 1996, Vol. 54 ›› Issue (11): 1114-1120. 上一篇    下一篇

研究论文

邻香兰素丝氨酸Schiff碱吡啶合锌(Ⅱ)配合物的合成、晶体结构和热分解动力学

刘德信;康永军;李淑兰;刘亮;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:1996-11-15

Synthesis, crystal structure and kinetics of thermal decomposition of o-vanillin-serine Schiff base dipyridine zinc(Ⅱ)

LIU DEXIN;KANG YONGJUN;LI SHULAN;LIU LIANG;YANG ZHAOHE   

  • Published:1996-11-15

PDF

670

被引次数

1

合成的标题化合物晶体-C~2~6H~2~6N~4O~5Zn属正交晶系, 空间群P2~12~12~1,a=0.9460(4)nm, b=1.4114(4)nm, c=1.9254(4)nm, Z=4。利用热重分析对配合物第二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, 得到其相应的动力学参数, 非等温动力学方程为:dα/dt=A·e^-^E^/^R^T·(1-α)^2

关键词: 吡啶 P, 锌络合物, 晶体结构, 动力学方程, 热重分析, 动力学参数, SCHIFF碱, 分解动力学

The crystal of o-vanillin-serine dipyridine Zn(Ⅱ) C~2~6H~2~6N~4O~5Zn 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=0.9460(4)nm, b=1.4114(4)nm, c=1.9254(4)nm, V=2.571(2)nm^3, Z=4. 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 is: dα/dt=A·e^-^E^/^R^T·(1-α)^2

Key words: PYRIDINE P, ZINC COMPLEX, CRYSTAL STRUCTURE, KINETICS EQUATIONS, THERMOGRAVIMETRY, KINETICS PARAMETER

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