Synthesizing new Bi-structure energetic coordination compounds using ternary components

Overcoming detonation performance constraints and achieving suitable mechanical sensitivity in energetic materials present profound challenges. Using regional isomerization, we strategically introduced high-energy structures into pyrazole rings and synthesized a new ligand, namely 1-amino-1 H -pyrazole-5-carbohydrazide ( 1-APZ-5-CA ), and its corresponding complex, denoted [Ag(1-APZ-5-HCA)(ClO 4 ) 2 ] n ( ECPs-1 ). ECPs-1 capitalizes on a dual structural framework, comprising an ionic salt and a complex, resulting in enhanced [ClO 4 − ] content, an elevated oxygen balance constant (+3.56%), remarkable thermal stability ( T d = 225 °C), and excellent resistance to mechanical stimuli (IS = 8 J, FS = 64 N). Comprehensive testing, encompassing traditional ignition assessments and laser-based ignition experiments, unequivocally underscores the outstanding explosive initiation capabilities of ECPs-1 ( P = 40 W, τ = 2 ms, E = 80 mJ). [Ag(1-APZ-5-HCA)(ClO 4 ) 2 ] n ( ECPs-1 ) has a dual structure of ionic salt and coordination compounds. It also has the advantages of high ClO 4 − content and oxygen balance, acceptable mechanical stimulation and excellent explosion performance.