Advanced tetracyclic heat-resistant energetic materials based on bis(4-nitropyrazole) bridged 1,2,4-triazole

被引：1

作者：

Chen, Luyao ^{[1
]}

Hu, Wei ^{[1
]}

Lei, Caijin ^{[1
]}

Zhu, Teng ^{[1
]}

Li, Chengchuang ^{[1
]}

Tang, Jie ^{[1
]}

Cheng, Guangbin ^{[1
]}

Xiao, Chuan ^{[2
]}

Yang, Hongwei ^{[1
]}

机构：

[1] Nanjing Univ Sci & Technol, Sch Chem & Chem Engn, Xiaolingwei 200, Nanjing, Jiangsu, Peoples R China

[2] China Northern Ind Grp Co Ltd NORINCO GRP, Beijing 100089, Peoples R China

来源：

DALTON TRANSACTIONS | 2024年 / 53卷 / 30期

基金：

中国国家自然科学基金;

关键词：

HIGH-PERFORMANCE;

D O I：

10.1039/d4dt01627k

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

In recent years, with the development of deep coal mines and petroleum resources and the expansion of the aerospace industry, the pursuit of heat-resistant energetic materials with high thermal stability and high energy has been increasing. Bis(4-nitropyrazole) was employed as an energy bridge to link 1,2,4-triazole, thereby constructing a sophisticated tetracyclic framework in this study. A tetracyclic heat-resistant explosive 5,5 '-(4,4 '-dinitro-2H,2 ' H-[3,3 '-bipyrazole]-5,5 '-diyl)bis(4H-1,2,4-triazole-3,4-diamine) (3) and its derivatives 6-8 with excellent comprehensive performance have been successfully prepared. Particularly noteworthy is that compound 3 has a detonation velocity of 8604 m s(-1), which exceeds that of the conventional heat-resistant explosive HNS with a velocity of 7164 m s(-1). Furthermore, compound 3 has higher thermal stability (T-d = 340 degrees C) than HNS (T-d = 318 degrees C). In addition, the tetracyclic compound 3 also exhibited extraordinarily low sensitivity (IS > 40 J; FS > 360 N). These unique characteristics make it a potential candidate for novel heat-resistant and insensitive energetic materials.

引用

页码：12641 / 12648

页数：8