Nitro-Tetrazole and its high nitrogen-contented compounds

Nitro-tetrazole and its high nitrogen-contented compounds are a family of important energetic materials, which exhibit the excellent performance and distinctive structure character. Recently, they have attracted more and more attention in the field of energetic materials due to their widely potential applications in the areas of primary explosives, propellant, burning catalyst, high energy explosives, gas-generating agents and so on. The structure of nitro-tetrazole and its thermal decomposition mechanism are discussed. The process in nitro-tetrazole and its salts as well as coordination complexes are reviewed in this paper, in which the synthesis, characterization and application about them are mainly summarized. Salts of nitro-tetrazole comprise of alkali metal salts, alkaline earth metal salts, transition metal salts, amine salts and high nitrogen-contented azoles salts according to the difference of the cations. In addition, the coordination compounds can be classified to coordination complex cations and coordination complex anions considering the coordinated mode. On this basis, the development trends of the nitrotetrazole and its high nitrogen-contented compounds are prospected.