School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu, 210094, China.
School of Chemical Engineering, University of Science and Technology Liaoning, Anshan, Liaoning, 114051, China.
Nat Commun. 2018 Mar 28;9(1):1269. doi: 10.1038/s41467-018-03678-y.
The pentazolate anion, as a polynitrogen species, holds great promise as a high-energy density material for explosive or propulsion applications. Designing pentazole complexes that contain minimal non-energetic components is desirable in order to increase the material's energy density. Here, we report a solvent-free pentazolate complex, AgN, and a 3D energetic-framework, [Ag(NH)][Ag(N)]-, constructed from silver and cyclo-N-. The complexes are stable up to 90 °C and only Ag and N are observed as the final decomposition products. Efforts to isolate pure AgN were unsuccessful due to partial photolytical and/or thermal-decomposition to AgN. Convincing evidence for the formation of AgN as the original reaction product is presented. The isolation of a cyclo-N- complex, devoid of stabilizing molecules and ions, such as HO, HO, and NH, constitutes a major advance in pentazole chemistry.
五氮阴离子作为一种多氮物种，有望成为爆炸或推进应用的高能密度材料。设计含有最小非能量成分的五唑配合物是可取的，以提高材料的能量密度。在这里，我们报告了一种无溶剂的五氮配合物 AgN 和一个由银和环-N-构建的 3D 能质骨架 [Ag(NH)][Ag(N)]-。这些配合物在高达 90°C 时稳定，只有 Ag 和 N 被观察到是最终的分解产物。由于部分光解和/或热分解为 AgN，试图分离纯 AgN 是不成功的。提出了形成 AgN 作为原始反应产物的令人信服的证据。分离出一种没有稳定分子和离子（如 HO、HO 和 NH）的环-N-配合物，是五唑化学的重大进展。
