Synthesis, Crystal Structure and Catalytic Properties of 2,6-Diamino-3,5-dinitropyridine-1-oxide Coblat(III)

An energetic Co(Ⅲ) complex based on the ligand 2,6-diamino-3,5-dinitropyridine-1-oxide(ANPyO) has been synthesized and its crystal structure has been got.The molecular formula is determined as [Co(ANPyO) 3 ]. The thermal decomposition process of the title complex was studied by means of the TG-DTG and DSC technologies.It consists of one slow endothermic peak and two violent exothermic peaks with 3.7277% residues. The mechanic sensitivity test results show that [Co(ANPyO) 3 ] is an insensitive energetic compound which has lower sensitivity than ANPyO.Meanwhile,DSC experiment reveals that [Co(ANPyO) 3 ] can accelerate the decomposition of AP which has decreased the higher thermal decomposition temperature of AP by 65.15 ℃, showing good catalytic effect on the thermal decomposition of AP.