Bipyrazole bearing ten nitro groups – a novel highly dense oxidizer for forward-looking rocket propulsions
作者:Igor L. Dalinger、Kyrill Yu. Suponitsky、Tatyana K. Shkineva、David B. Lempert、Aleksei B. Sheremetev
DOI:10.1039/c8ta05179h
日期:——
environmentally friendly chlorine free alternatives to ammonium perchlorate (AP) which is still the main oxidizer for solid propellants; however, success in this way is extremely rare. In this work, a novel oxygen-rich energetic material, 4,4′,5,5′-tetranitro-2,2′-bis(trinitromethyl)-2H,2′H-3,3′-bipyrazole (11), was obtained by N-alkylation of 4,4′,5,5′-tetranitro-2H,2′H-3,3′-bipyrazole (9) with bromoacetone
考虑到未来火箭工业突破的多种需求,与液体,固体,胶凝和混合推进剂系统的常规推进剂成分相比,科学界目前正在集中精力设计新型高性能,高科技和环保的材料。 。早些时候,人们为寻找对环境友好的无氯替代物高氯酸铵(AP)做出了巨大的努力,而高氯酸铵仍然是固体推进剂的主要氧化剂。但是,以这种方式获得成功的机会极为罕见。在这项工作中,一种新颖的富含氧气的高能材料,4,4',5,5'-四硝基2,2'-双(trinitromethyl)-2 ħ,2' ħ -3,3'- bipyrazole(11) ,由N获得的4,4烷基化',5,5'-四硝基2 ħ,2' ħ -3,3'- bipyrazole(9)与溴丙酮和随后的硝化。X射线单晶衍射证实了其结构,并在室温下显示出2.021 g cm -3的独特高晶体密度,将其引入了已知的最稠密的CHNO化合物的前三位。这种高密度材料与CL-20相似,具有吸引人的正氧平衡,