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化学学报
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化学学报 ›› 1994, Vol. 52 ›› Issue (6): 545-550. 上一篇    下一篇

研究论文

[Pb(NTO)~2(H~2O)]的制备, 分子结构和热分解机理的研究

张同来;胡荣祖;李福平;郁开北   

  1. 西安近代化学研究所;中国科学院成都分院
  • 发布日期:1994-06-15

Preparation, molecular structure and thermal decomposition mechanism of [Pb(NTO)~2(H~2O)]

ZHANG TONGLAI;HU RONGZU;LI FUPING;YU KAIBEI   

  • Published:1994-06-15

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通过3-硝基-1, 2, 4-三唑-5-酮(NTO)的钠盐水溶液与硝酸铅水溶液反应, 制备了标题配合物, 并用TG-DTG、元素分析、13^C NMR分析和红外光谱对它进行了表征。其结构用单晶分析法测定, 所得晶体学参数为: a=0.7284(2), b=1.2166(3), c=1.2310(3)nm, β=90.36(2)°, V=1.0908(4)nm^3, Z=4, D~c=2.96g.cm^-3,μ=156.40cm^-1, F(000)=888; 晶体属单斜晶系, 空间群为P2/n, 最终偏离因子R为0.0667。根据TG-DTG和FT-IR技术得到的分析结果, 提出了线性升温条件下标题配合物的热分解机理。

关键词: 晶体结构测定, 硝基化合物, 反应机理, 分子结构, 单晶, 铅络合物, 热分解, 三唑酮 P

= 3-nitro-1,2,4-triazol-5-one) and lead nitrate. It was characterized by thermal anal., elemental anal., 13C NMR and IR measurement. The crystal structure of [Pb(NTO)2(H2O)] was determine by single crystal diffraction anal. The crystal belongs to space group P21/n with a 0.7284(2), b 1.2166(3), c 1.2310(3) nm, b 90.36(2)? Z = 4, dc = 2.96 g譪m-3, R = 0.0667. Based on the thermal anal., the thermal decomposition mechanism of [Pb(NTO)2(H2O)] was derived.

Key words: CRYSTAL STRUCTURE DETERMINATION, NITRO COMPOUNDS, REACTION MECHANISM, MOLECULAR STRUCTURE, SINGLE CRYSTALS, LEAD COMPLEX, THERMAL DECOMPOSITION

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