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化学学报
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化学学报 ›› 1998, Vol. 56 ›› Issue (4): 371-377. 上一篇    下一篇

研究论文

双[2-(2'-苯氧基)苯并恶唑]二吡啶合锰(II)配合物的研究

周建华;李淑兰;姜海辉;刘德信;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:1998-04-15

Synthesis, crystal structure and thermal decomposition of bis[2-(2'-phenoxyl)-benzoxazole]-di-pyridine manganese(II)

ZHOU JIANHUA;LI SHULAN;JIANG HAIHUI;LIU DEXIN;YANG ZHAOHE   

  • Published:1998-04-15

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347

X射线晶体结构分析结果表明, 标题化合物晶体(C36H26MnN4O4)属单斜晶系, 空间群为P21/a, a=0.9833(3), b=1.8646(3),c=0.9449(1)nm, Z=2, 最终因子Rw=0.057。利用热重分析对配合物晶体两步热分解过程进行了非等温热力学研究, 探讨了反应的可能机理, 得到其相应的动力学参数。第一步非等温动力学方程为: dα/dt=A.exp(-E/RT).2(1-α)^1^/^2, 第二步: dα/dt=A.exp(-E/RT).3/2(1-α)[-ln(1-α)]^1^/^3。

关键词: 吡啶 P, 反应机理, 反应动力学, 晶体结构, Ｘ射线衍射分析, 热重量分析, 锰络合物, 恶唑 P

The title complex C36H26MnN4O4 was synthesized and its strucutre was determined by single crystal X-ray diffraction method. The crystal is monoclinic system, space group P21/a, a=0.9833(3), b=1.8646(3), c=0.9449(1)nm, Z=2, final Rw=0.057 for 1217 observed reflections [I≥3σ(I)]. The kinetics of thermal decomposition reaction of the title complex was studied under non-isothermal condition by TG. The kinetic parameters were obtained from the analysis of TG, DTG curves by integral and differential methods. The kinetic first step dα/dt=A.exp(-E/RT).2(1-α)^1^/^2; second step : dα /dt=A.exp(-E/RT).3/2(1-α)[-ln(1-α)]^1^/^3.

Key words: PYRIDINE P, REACTION MECHANISM, REACTION KINETICS, CRYSTAL STRUCTURE, X-RAY DIFFRACTION ANALYSIS, THERMOGRAVIMETRY, MANGANESE COMPLEX

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