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Synthesis of a high-energy-density material through rapid replacement of crystal water of hydrates
Chem ( IF 19.1 ) Pub Date : 2022-07-11 , DOI: 10.1016/j.chempr.2022.06.007
Jichuan Zhang , Yongan Feng , Yiyang Bo , Ajay Kumar Chinnam , Jatinder Singh , Richard J. Staples , Xiaohui He , Kun Wang , Jiaheng Zhang , Jean’ne M. Shreeve

An energetic cocrystal TNBI-TANPDO (TNBI, 4,4′,5,5′-tetranitro-2,2′-bi-1H-imidazole; TANPDO, 2,4,6-triamino-5-nitropyrimidine-1,3-dioxide) was rapidly self-assembled in aqueous solution from the precursors of TNBI dihydrate and TANPDO monohydrate. Benefiting from the formation of a novel strong hydrogen bond synthon between TNBI and TANPDO by replacing crystal H2O molecules in its precursors, TNBI-TANPDO exhibits nearly all of the desirable properties required by energetic materials, including higher density (1.89 g cm−3 at room temperature), higher thermostability (275°C), and lower solubility (21 mg in 100 mL) in water relative to the two precursors. Additionally, TNBI-TANPDO is insensitive to mechanical stimuli, although exhibiting an excellent detonation performance (Dv = 8,648 m s−1, P = 33.17 GPa). These desirable properties make TNBI-TANPDO an extremely promising insensitive high explosive. This work provides a new insight into eliminating crystal H2O of hydration, and a new family of energetic cocrystals with excellent properties can be prepared based on this work.



中文翻译:

快速置换水合物结晶水合成高能量密度材料

高能共晶体 TNBI-TANPDO (TNBI, 4,4',5,5'-tetranitro-2,2'-bi-1H-imidazole; TANPDO, 2,4,6-triamino-5-nitropyrimidine-1,3-二水合物)在水溶液中由 TNBI 二水合物和 TANPDO 一水合物的前体快速自组装。受益于 TNBI 和 TANPDO 之间通过替换其前体中的晶体 H 2 O 分子形成的新型强氢键合成子,TNBI-TANPDO 表现出几乎所有高能材料所需的特性,包括更高的密度(1.89 g cm -3与两种前体相比,在室温下)、更高的热稳定性(275°C)和更低的水中溶解度(21 mg/100 mL)。此外,TNBI-TANPDO 对机械刺激不敏感,但具有出色的爆轰性能(Dv  = 8,648 ms -1,P = 33.17 GPa)。这些理想的特性使 TNBI-TANPDO 成为一种极有前途的不敏感高能炸药。该工作为消除晶体水合H 2 O提供了新的思路,并可以在此基础上制备出一系列具有优异性能的高能共晶。

更新日期:2022-07-11
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