A novel energetic pyridine-2-carbohydrazide copper perchlorate complex: synthesis, cationic ligand structure and properties

Abstract

To synthesize lead-free primary explosives with good thermal stability, pyridine-2-carbohydrazide (2-PDCA) was used to prepare a novel energetic copper perchlorate complex (ECCs-1), which was structurally characterized by infrared spectroscopy, NMR, and elemental analysis. Its thermal decomposition properties were investigated by thermogravimetry and a synchrotron thermal analyzer, and the sensitivity was tested by the BAM method. The laser ignition experiment and the lead plate tests show that the ECCs-1 complex has a good detonation performance with a high thermal decomposition temperature (215.6 °C) and moderate sensitivity (impact sensitivity = 3 J and friction sensitivity = 5 N).