Preparation of Novel High-Performing Energetic Salts via Precise Tuning of Acidity

Precise tuning of the acidity of N–H is crucial to the formation of high-performance energetic salts. In this work, two strategies were applied for tuning the acidity of N–H, i.e., the introduction of the nitro group and the tetrazole ring. The latter was proven to be a successful strategy to enhance the acidity of N–H and energetic salts were successfully prepared via acid–base reactions. All newly prepared salts exhibit excellent detonation performances. Among them, 3b exhibits the best performance (D = 9292 m·s^–1, p = 33.4 GPa), which is comparable to HMX (D = 9144 m·s^–1). Moreover, all the energetic salts produce higher gas volumes (798.6–820.1 dm³ kg^–1) than RDX (783.6 dm³ kg^–1).