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1,1′-二羟基-3,3′-二硝基-5,5′-联-1,2,4-三唑含能离子盐合成、晶体结构及性能
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(1. 西安近代化学研究所, 陕西 西安 710065; 2. 氟氮化工资源高效开发与利用国家重点实验室, 陕西 西安 710065)

作者简介:

罗义芬(1981-),女,副研究员,主要从事含能材料合成研究。e-mail: luoyiluoyiluoyi204@163.com

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基金课题请注明类别(国家自然科学基金等)与批准号 ,毕福强1,王伯周1,2,周诚1,李亚南1


Synthesis, Crystal Structure and Performance of 3,3′- Dinitro-5,5′-bis-1,2,4-triazole-1,1′-diolate Energetic Ionic Salts
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(1. Xi′an Modern Chemistry Research Institute, Xi′an 710065, China; 2. State Key Laboratory of Fluorine & Nitrogen Chemicals, Xi′an 710065, China)

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    摘要:

    以1,1'-二羟基-3,3'-二硝基-5,5'-联-1,2,4-三唑(DNOBT)为原料,分别与3-氨基-1,2,4-三唑、草酰肼、二肼基四嗪反应合成了DNOBT的3-氨基-1,2,4-三唑盐(DNOBT-3-AT)、草酰肼盐(DNOBT-ODH)、二肼基四嗪盐(DNOBT-DHT)三种含能离子盐,用红外光谱、核磁及元素分析对其结构进行了表征;培养了DNOBT-3-AT的单晶,X射线衍射分析表明其晶体为单斜晶系,空间群为P2(1)/c;利用Gaussian 09程序和Kamlet-Jacobs方程计算了DNOBT-3-AT、DNOBT-ODH、DNOBT-DHT的物化与爆轰性能,采用差示扫描量热(DSC)研究了这三种化合物的热性能,结果表明,DNOBT-3-AT、DNOBT-ODH、DNOBT-DHT爆速分别为7736.4,7729.56,7974.64 m·s-1,爆压分别为26.8,26.74,28.56 GPa;第一个热分解峰温度分别为276.54,257.02,154.15℃,相较于DNOBT-ODH和DNOBT-DHT,DNOBT-3-AT具有更好的热稳定性。

    Abstract:

    Using 3, 3'-dinitro-5, 5'-bis-1, 2, 4-triazole-1, 1'-diolate(DNOBT) as starting material, three energetic ionic salts (DNOBT-3-AT, DNOBT-ODH, DNOBT-DHT)were synthesized by reaction with 3-amino-1, 2, 4-triazole, oxalyl dihydrazide, 3, 6-dihydrazine-1, 2, 4, 5-tetrazine, respectively, and their structures were characterized by FT-IR, NMR and elementary analysis. The single crystal of DNOBT-3-AT was cultivated, and its crystal structure was determined by X-ray crystallography. It is found that DNOBT-3-AT crystallizes in monoclinic system, space group P2(1)/c. Their physico-chemistry and detonation properties were calculated by Gaussian 09 program and Kamlet-Jacobs formula. Meanwhile, the thermal behaviors of the three compounds were studied with differential scanning calorimetry (DSC). Results show that the detonation velocities are 7736.4, 7729.56, 7974.64 m·s-1, and the detonation pressures are 26.8, 26.74, 28.56 GPa, respectively. The first exothermic decomposition peak temperatures of DNOBT-3-AT, DNOBT-ODH and DNOBT-DHT are 276.54, 257.02, 154.15℃, respectively, which shows that DNOBT-3-AT has better thermal stability than DNOBT-ODH and DNOBT-DHT.

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罗义芬,毕福强,王伯周,等.1,1′-二羟基-3,3′-二硝基-5,5′-联-1,2,4-三唑含能离子盐合成、晶体结构及性能[J].含能材料, 2017, 25(10):848-852. DOI:10.11943/j. issn.1006-9941.2017.10.010.
LUO Yi-fen, BI Fu-qiang, WANG Bo-zhou, et al. Synthesis, Crystal Structure and Performance of 3,3′- Dinitro-5,5′-bis-1,2,4-triazole-1,1′-diolate Energetic Ionic Salts[J]. Chinese Journal of Energetic Materials, 2017, 25(10):848-852. DOI:10.11943/j. issn.1006-9941.2017.10.010.

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  • 收稿日期: 2017-01-16
  • 最后修改日期: 2017-05-26
  • 录用日期: 2017-06-07
  • 在线发布日期: 2017-10-26
  • 出版日期: 2017-11-06