Nitroiminotriazole (NIT) based potential solid propellants: synthesis, characterization, and applications

Abstract

Nitroimino (R = N-NO₂) energetic material is a unique class of high energy density materials (HEDM). Synthesis and characterization of insensitive nitroimino compounds are a major challenge. Here triazole-based nitroimino compounds and their high-nitrogen green energetic salts in excellent yields are described. These materials exhibit high positive heats of formation (7.84 to 735.29 kJ mol⁻¹), good densities (1.66 to 1.98 g cm⁻³), suitable detonation properties (P = 22.02 to 31.88 GPa; D = 7472 to 8936 ms⁻¹) and high ballistic properties (I_sp 205.66 to 295.35 s; C* = 1065 to 1832 ms⁻¹) with good thermal (T_d = 136–378 °C) and mechanical stabilities (IS = 10–40 J and FS = 120–360 N).