Department of Chemistry, University of Idaho, Moscow, Idaho 83844-2343, USA.
Inorg Chem. 2010 Apr 5;49(7):3282-8. doi: 10.1021/ic902224t.
Recently extensive research has focused on replacing toxic hydrazine, monomethylhydrazine, and unsymmetrical dimethylhydrazine as liquid propellant fuels. 2-Azido-N,N-dimethylethylamine (1) is a good candidate to replace hydrazine derivatives in certain hypergolic fuel applications. Energetic ionic liquids that contain the 2-azido-N,N,N-trimethylethylammonium cation with nitrocyanamide, dicyanamide, dinitramide, or azide anion have been successfully synthesized in good yields by metathesis reactions. Ionic liquids have received considerable attention as energetic materials. The replacement of hydrazine with tertiary ammonium salts is especially attractive since many ionic liquids are models for green chemistry. In this work, new azide-functionalized ionic liquids are demonstrated to exhibit hypergolic activity with such oxidizers as 100% nitric acid or nitrogen tetraoxide (NTO).
最近，人们广泛研究用毒性更小的肼、一甲肼和偏二甲肼来替代液体推进剂燃料。2-叠氮-N,N-二甲基乙胺（1）是在某些自燃燃料应用中替代肼衍生物的一个很好的候选物。通过复分解反应成功地以较高产率合成了含有 2-叠氮-N,N,N-三甲基乙铵阳离子与硝基亚氨基氰、双氰胺、二硝酰胺或叠氮阴离子的含能离子液体。离子液体作为含能材料已经受到了相当多的关注。用叔铵盐替代肼尤其具有吸引力，因为许多离子液体是绿色化学的模型。在这项工作中，新的叠氮官能化离子液体被证明与 100%硝酸或四氧化二氮（NTO）等氧化剂具有自燃活性。
