A New Energetic Complex [Co(2,4,3‐tpt)2(H2O)2]·2NO3: Synthesis,Structure, and Catalytic Thermal Decomposition for Ammonium Perchlorate |
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| Authors: | Bing Li Jing Han Qingfeng Yang Xianyan Tian Xiaoyan Chen |
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| Affiliation: | 1. Department of Chemistry and Chemical Engineering, Ningxia University, No.489 He lanshan Street, Yinchuan, 750021, P. R. China;2. Key Laboratory of Energy Resources and Chemical Engineering, Ningxia University, No.489 He lanshan Street, Yinchuan, 750021, P. R. China |
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| Abstract: | The energetic complex, [Co(2,4,3‐tpt)2(H2O)2] · 2NO3 ( 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(H2O)2]2+, whereas NO3– ions not only act as counter anions to balance the charge of the CoII 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 Ea/ln(A) is 11.87 for the mixture, which indicates that complex 1 shows good catalytic activity toward AP decomposition. |
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| Keywords: | Energetic materials 2,4,3‐tpt Crystal structure Catalytic thermal decomposition Cobalt X‐ray diffraction |
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