A New Energetic Complex [Co(2,4,3‐tpt) 2 (H 2 O) 2 ]·2NO 3 : Synthesis, Structure, and Catalytic Thermal Decomposition for Ammonium Perchlorate

The energetic complex, [Co(2,4,3‐tpt) 2 (H 2 O) 2 ] · 2NO 3 ( 1 ) [2,4,3‐tpt = 3‐(2‐pyridyl)‐ 4‐(4'‐pyridyl)‐5‐(3′‐pyridyl)‐1H‐1,2,4‐triazole], was synthesized and characterized by single‐crystal X‐ray diffraction, thermogravimetric analyses, elemental analysis, X‐ray powder diffraction, and IR spectroscopy. The title complex is a 0D motif with a unit of [Co(2,4,3‐tpt) 2 (H 2 O) 2 ] 2+ , whereas NO 3 – ions not only act as counter anions to balance the charge of the Co II cations, but also provide hydrogen bond interactions, which make the 0D motif into a 1D chain. Furthermore, the thermal decomposition of ammonium perchlorate (AP) with complex 1 was explored by differential scanning calorimetry (DSC) over the temperature range from 50–500 °C. AP is completely decomposed in a shorter time in the presence of complex 1 , and the decomposition heat of the mixture is 2.143 kJ g –1 , significantly higher than pure AP. By Kissinger's method, the ratio of E a /ln( A ) is 11.87 for the mixture, which indicates that complex 1 shows good catalytic activity toward AP decomposition.