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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Preparation, crystal structure, and thermal decomposition of the energetic compound [Co(IMI)_4(PA)](PA) (IMI = imidazole and PA = picrate)
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Preparation, crystal structure, and thermal decomposition of the energetic compound [Co(IMI)_4(PA)](PA) (IMI = imidazole and PA = picrate)

机译：高能化合物[Co（IMI）_4（PA）]（PA）的制备，晶体结构和热分解（IMI =咪唑，PA =苦味酸盐）

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摘要

The novel multi-ligand coordination compound [Co(IMI)4(PA)](PA) (1) was synthesized by using imidazole (IMI) and picrate (PA) and characterized by elemental analysis and FT-IR spectroscopy. The crystal structure was determined by X-ray single crystal diffraction and the crystallographic data showed that the compound crystallizes in the triclinic space group P1 (α = 8.839(2) ?, b = 13.550(3) ?, c = 13.840(3) ?, α = 68.386(6)°, β = 88.349(9)°, and γ = 87.494(9)°). Furthermore, the Co~(II) ion is six-coordinated by four nitrogen atoms from four imidazole ligands and two oxygen atoms from a PA group. Its thermal decomposition mechanism was determined based on differential scanning calorimetry (DSC) and thermogravimetry-derivative thermogravimetry (TG-DTG) analysis. The kinetic parameters of the first exothermic process were studied by using Kissinger's and Ozawa's method, respectively. The energy of combustion and the enthalpy of formation were measured and calculated. They showed good combustion performance of the compound. Additionally, the sensitivity properties were determined with standard methods. The results of all these studies showed that [Co(IMI)4(PA)](PA) has potential application as ignition composition.
机译：用咪唑（IMI）和苦味酸（PA）合成了新型多配位体配位化合物[Co（IMI）4（PA）]（PA）（1），并通过元素分析和FT-IR光谱表征。通过X射线单晶衍射确定晶体结构，晶体学数据表明该化合物在三斜晶空间群P1中结晶（α＝ 8.839（2）θ，b ＝ 13.550（3）θ，c ＝ 13.840（3）。 α，α＝ 68.386（6）°，β＝ 88.349（9）°，γ＝ 87.494（9）°。此外，Co-（II）离子被来自四个咪唑配体的四个氮原子和来自PA基团的两个氧原子六配位。根据差示扫描量热法（DSC）和热重分析-衍生热重分析（TG-DTG）分析确定其热分解机理。分别使用基辛格和小泽方法研究了第一个放热过程的动力学参数。测量并计算出燃烧的能量和形成的焓。它们显示出该化合物良好的燃烧性能。另外，用标准方法测定灵敏度。所有这些研究的结果表明，[Co（IMI）4（PA）]（PA）具有潜在的应用作为点火成分。

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