Study on Primary Explosive: Cu(ClO<sub>4</sub>)<sub>2</sub>-Based Energetic Coordination Compounds as a Template
Tingwei Wang, Zujia Lu, Zhenxin Yi, Zhi-ming Xie, Lu Zhang, Bao-long Kuang, Yan Li, Jianguo Zhang
Abstract
In order to study the design and preparation of new coordination primary explosive, the influence of ligand on the performance was explored. Using the low-energy, low-nitrogen pyrrole as the skeleton and the hydrazide group as the target, the ligand 1 H -pyrrole-2-carbohydrazide (PRCA) was designed, the two ECCs [Cu(PRCA) 2 (H 2 O)(ClO 4 )]ClO 4 ·C 2 H 5 OH ( ECCs-1·C 2 H 5 OH ) and [Cu(PRCA) 2 (H 2 O)(ClO 4 )]ClO 4 ·2H 2 O ( ECCs-1·2H 2 O ) were prepared, and [Cu(PRCA) 2 (H 2 O)(ClO 4 )]ClO 4 ( ECCs-1 ) was obtained by a simple drying method. The structure of the target compound was confirmed by single-crystal X-ray diffraction, infrared (IR), and elemental analysis (EA) characterization. Physicochemical performance tests show that ECCs-1 has better thermal stability ( T d = 219 °C) and is more sensitive to impact sensitivity (IS = 7 J) and friction sensitivity (FS = 16 N). The detonation performance prediction results show that the detonation velocity and pressure of ECCs-1 are not high ( D EXPLO 5 = 6.2 km s –1, P EXPLO 5 = 16.2 GPa). However, detonation performance tests show that ECCs-1 has an extremely strong detonation ability.