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[Mn(IMI)_6](ClO_4)_2的合成、晶体结构及感度 被引量:2

Synthesis,Crystal Structure and Sensitivity of [Mn(IMI)_6](ClO_4)_2
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摘要 利用咪唑的水溶液和高氯酸锰水溶液反应制备高氯酸六咪唑合锰(II),培养出该配合物的单晶。用元素分析、红外光谱、DSC、TG-DTG和X射线单晶衍射等方法对该化合物进行了表征。结果表明,该晶体属于单斜晶系,空间群为P2(1)/n,晶胞参数a=11.721(2)nm,b=7.2191(13)nm,c=16.402(3)nm,β=90.064(3)°,V=1387.9(4)nm3;Dc=1.585g/cm3;Z=2;F(000)=678,μ=0.160mm,R1=0.0367,ωR2=0.1372。该化合物的分子式为[Mn(IMI)6](ClO4)2,是由6个咪唑分子直接与二价锰离子配位、与高氯酸根离子结合形成的配合物。热分析结果表明,在10K/min的升温速率下,该配合物的热分解过程由1个吸热峰和1个放热峰组成,剩余残渣量在9.9%左右。感度测试结果表明,该配合物为不敏感型的含能配合物。 An energetic compound [Mn (IMI)6] (ClO4)2 (IMI: imidazolium) was synthesized by reaction of imidazolium with Mn (ClO4)2 in aqueous solution. Single crystal of [Mn (IMI)6] (ClO4)2 was obtained. The compound was characterized by elemental analysis, TG-DTG and single crystal X-ray diffraction analysis. The results show that the crystal belongs to a monoclinic system with P2(1)/n space group and cell parameters of a= 11. 721(2)nm, b=7. 2191(13)nm, c=16. 402(3)nm, β=90. 064(3)°,V=1387. 9(4)nm^3; Dc=1. 585g/cm^3; Z=2; F(000): 678, u=0.160 mm, R2=0.0367, wR2=0.1372. The title compound [Mn(IMI)6](ClO4)2 formed by [Mn(IMI)6]^2+ and (ClO4)- belongs to an ionic compound. The central Mn(II) ion is six-coordinated with six imidazole molecules. At a heating rate of 10K/min, the thermal decomposition process of the title compound consists of one endothermic peak and one exothermic peak with 9. 9% residues. The mechanic sensitivity test results show that this compound is an insensitive energetic compound.
出处 《火炸药学报》 EI CAS CSCD 北大核心 2009年第6期15-19,共5页 Chinese Journal of Explosives & Propellants
基金 国家自然科学基金-中国工程物理研究院联合基金资助(批准号:10776002)
关键词 物理化学 咪唑 高氯酸锰 晶体结构 热分析 physical chemistry imidazolium manganese perehlorate crystal structure thermal analysis
作者简介 作者简介:任雁(1985-),女,硕士研究生,从事含能材料研究工作。
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