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化学学报
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化学学报 ›› 1996, Vol. 54 ›› Issue (9): 893-899. 上一篇    下一篇

研究论文

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

康永军;刘德信;李淑兰;李智红;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:1996-09-15

Synthesis, crystal structure and kinetics of thermal decomposition of the complex of o-vanillin-L-valine-dipyridine zinc(Ⅱ)

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

  • Published:1996-09-15

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580

被引次数

1

合成的标题化合物晶体(C~2~3H~2~9N~3O~6Zn)属正交晶系, 空间群P2~12~12~1, 晶胞参数a=0.9345(2), b=2.6620(5), c=0.9748(4)nm, V=2.425(2)nm^3, Z=4。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, 得到其相应的动力学参数, 非等温动力学方程为:da/dt=A·e^-^E^/^R^T·(1-a)。

关键词: 吡啶 P, 锌络合物, 晶体结构, 缬氨酸, 热重分析, 香兰素, SCHIFF碱, 分解动力学, 非等温动力学

The complex[Zn(L)(C~5H~5N)~2]·2H~2O(L=3-methoxysalicylidene-L-valine) was synthesized. The complex crystalizes in an orthorhombic system, space group is P2~12~12~1, cell parameters: a=0.9345(2), b=2.6620(5), c=0.9748(4)nm, V=2.425(2)nm^3, M~r=508.87, Z=4, with R=0.074, R~w=0.076. 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: da/dt=A·e^-^E^/^R^T·(1-a).

Key words: PYRIDINE P, ZINC COMPLEX, CRYSTAL STRUCTURE, VALINE, THERMOGRAVIMETRY, VANILLIN

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