CHINESE JOURNAL OF ENERGETIC MATERIALS
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五唑羟胺/盐酸羟胺共晶化合物的合成、晶体结构和性能
作者:
作者单位:

1.南京理工大学化学与化工学院, 江苏 南京 210094;2.国家民用爆破器材质量监督检验中心, 江苏 南京 210094

作者简介:

袁媛(1996-),女,硕士研究生,主要从事含能材料的合成研究。e-mail:1195892878@qq.com

通讯作者:

许元刚(1991-),男,教授,主要从事多氮含能化合物合成及应用研究。e-mail:yuangangxu@163.com

基金项目:

国家自然科学基金资助(21975127,22135003,22105102)


Synthesis, Crystal Structure and Properties of an Energetic Cocrystal of Hydroxylammonium Pentazolate/Hydroxylamine Hydrochloride
Author:
Affiliation:

1.School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China;2.China National Quality Supervision Testing Center for Industrial Explosive Materials, Nanjing 210094, China

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    摘要:

    以五唑银盐(或五唑羟胺盐)和盐酸羟胺为原料,设计并合成了一种新型的基于五唑阴离子的含能共晶化合物(NH3OH+N5-2·NH3OH+Cl-·H2O。采用单晶X-射线衍射分析(XRD)、傅里叶红外光谱(IR)和元素分析对该化合物的结构进行了表征,晶体属于单斜晶系,P21/n空间群,晶胞参数为a=3.8390(6) Å,b=14.665(2) Å,c=21.975(3) Å,V=1236.4(3) Å3α=γ=90°,β=92.034(3)°,Z=1,Dc=1.589 g·cm-3。利用差示扫描量热仪(DSC)和热失重分析仪(TG)对(NH3OH+N5-2·NH3OH+Cl-·H2O的热稳定性进行了研究,结果显示其初始分解温度约为95.6 ℃,热稳定性良好。通过EXPLO5计算其爆速为8260 m·s-1,爆压为23.79 GPa。该共晶化合物具有较低的撞击和摩擦感度(IS>40 J;FS>360 N),盐酸羟胺的共结晶大大降低了NH3OH+N5-的机械感度。

    Abstract:

    A cyclo-pentazolate anion-based energetic cocrystal (NH3OH+N5-2·NH3OH+Cl-·H2O was designed and synthesized by AgN5 (or NH3OH+N5-) and hydroxylamine hydrochloride(NH3OH+Cl-) as raw materials. The structure of the compound was characterized by X-ray single crystal diffraction, infrared spectroscopy and elemental analysis. The structure belongs to the monoclinic crystal system,the P21/n space group, a=3.8390(6)Å, b=14.665(2)Å, c=21.975(3)Å, V=1236.4(3)Å3α=γ=90°, β=92.034(3)°, Z=1, Dc=1.589 g·cm-3. In addition, the thermal stability of (NH3OH+N5-2·NH3OH+Cl-·H2O was studied using DSC and TG, and the results showed that its initial decomposition temperature was about 95.6 ℃. Its detonation velocity and detonation pressure were calculated by EXPLO5 to be 8260 m·s-1 and 23.79 GPa. (NH3OH+N5-2·NH3OH+Cl-·H2O has low impact and friction sensitivities (IS>40 J; FS>360 N), as the cocrystal of hydroxylamine hydrochloride can greatly reduce the mechanical sensitivity of NH3OH+N5-.

    表 1 化合物3的晶体数据Table 1 Crystallographic data for compound 3
    表 5 化合物2和3的理化性质和能量性能Table 5 Physiochemical properties and energetic properties of compounds 2 and 3
    表 3 化合物3的部分二面角Table 3 Selected dihedral angles of compound 3
    表 2 化合物3的部分键长和键角Table 2 Selected bond lengths and angles of compound 3
    图1 五唑共晶的合成Fig.1 The syntheses of co-crystals of cyclo-N5⁻
    图2 化合物3的分子结构图Fig.2 Crystal structure of compound 3
    图3 化合物3的晶胞堆积图(氢键用蓝色虚线表示)Fig.3 Crystal stacking diagram of compound 3 (blue dashed lines indicate hydrogen bonds)
    图4 (a、b)化合物3中两种cyclo-N5⁻的Hirshfeld表面;(c、d)化合物3中两种cyclo-N5⁻的二维指纹图及原子间相互作用的比例(图中的Hirshfeld表面表示N─N相互作用)Fig.4 (a, b) Hirshfeld surfaces of the two kinds of cyclo-N5⁻ in compound 3; (c, d) The 2D fingerprints of the two kinds of cyclo-N5⁻ in compound 3 and the individual atomic contacts percentage (the Hirshfeld surfaces represent N─N interactions)
    图5 化合物3的非共价相互作用(包括氢键和π-π相互作用)分析Fig.5 Noncovalent interactions analyses, including hydrogen bonds and π-π interactions for 3 (blue: strong attraction; green: weak interaction; red: strong repulsion; SHB: strong hydrogen bond; HB: hydrogen bond)
    图6 化合物3的DSC和TG图Fig.6 DSC and TG curves of compound 3
    表 4 化合物3中氢键的键长和键角Table 4 Hydrogen bond lengths and angles of compound 3
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引用本文

袁媛,侯天阳,李冬雪,等.五唑羟胺/盐酸羟胺共晶化合物的合成、晶体结构和性能[J].含能材料, 2022, 30(2):96-102. DOI:10.11943/CJEM2021282.
YUAN Yuan, HOU Tian-yang, LI Dong-xue, et al. Synthesis, Crystal Structure and Properties of an Energetic Cocrystal of Hydroxylammonium Pentazolate/Hydroxylamine Hydrochloride[J]. Chinese Journal of Energetic Materials, 2022, 30(2):96-102. DOI:10.11943/CJEM2021282.

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历史
  • 收稿日期: 2021-10-22
  • 最后修改日期: 2021-11-06
  • 录用日期: 2021-11-11
  • 在线发布日期: 2022-03-17
  • 出版日期: 2022-02-25