Preparation of An Energetic Coordination Polymer [Zn2(ATz)3 (CN)]n and Its Catalytic Activity on Thermal Decomposition of Ammonium Perchlorate

The dihydrazinium salt of 1,3-bis(5-tetrazolyl)triazene was synthesized via a diazotization/neutralization reaction using 5-aminotetrazole (5-ATz) as the starting material. On this basis, an energetic coordination polymer, [Zn2 (ATz)3 (CN)]„(ECP-1), was prepared hydrothermally using zinc Perchlorate. The crystal structure of ECP-1 was elucidated by single-crystal X-ray diffraction, and the thermal stability was studied by DSC and TG. The mechanical sensitivities of ECP-1 was tested and its detonation velocity and detonation pressure was calculated. Its catalytic Performance in promoting the thermal decomposition of ammonium Perchlorate (AP) was evaluated by DSC. The results show that the ECP-1 reveals a trigonal System with space group R32 and a high crystal density of 2. 231 g/cm3. It exhibits excellent thermal stability with a peak decomposition temperature of 391 °C. The impact sensitivity and friction sensitivity are more than 40J and 360N,respectively. The detonation velocity and detonation pressure are 7. 53 km/s and 28. 20GPa. The addition of 20% ECP-1 lowers the decomposition temperature of AP to 325. 6 °C and reduced the activation energy by 34. 27 kj/mol. These results highlight the promising catalytic ca-pabilities of ECP-1 for AP decomposition, which shows potential Utility as an energetic combustion catalyst. © 2025 China Ordnance Industry Corporation. All rights reserved.