On the 28th, "Nature" magazine published the research results of our country in the field of energetic materials - Luming professor's research group of the Nanjing University of Science and Technology's paper "series of metal salts of hydrated metal azole compounds." This shows that China has made major breakthroughs in all-nitrogen-containing energetic substances and is expected to increase the energy level of explosives that restrict the overall performance of our weaponry.
Total nitrogen energetic substances are a new generation of energetic materials that have been developed in recent years because they consist essentially of nitrogen. The explosive products of these substances are mainly nitrogen, clean and pollution-free, and they are not easily detectable. They also have the advantage of low signal in the military. . More importantly, the total nitrogen structure itself is metastable and easily decomposes and releases a large amount of energy. Therefore, it is expected to exponentially increase the energy level of the explosive (more than 3 times that of TNT) and become a typical example of a new generation of ultra-high energy energetic materials. representative.
However, the main factor limiting the application of all-nitrogen energetic substances is the synthesis of stable compounds. The nitrogen in the polynitrogen material exists in the form of a high-pressure polymerized state, and usually exists only when other elements can provide a stable effect. Therefore, the research work on the preparation of stabilizing total nitrogen anions (N5-) and their salts in countries all over the world has not made substantial progress.
Lu Ming's research group has for the first time prepared the sodium, manganese, iron, cobalt and magnesium salt hydrates of perazinazole cations. Through its single crystal structure, it systematically revealed the mutual coordination between pernitro pentazole anions and metal cations. The hydrogen bonding interaction with water, as well as the thermal stability rule, lays a solid scientific foundation for the study of the assembly of pernitronitazole anions with total nitrogen cations to form ion-type total nitrogen compounds.
This paper is the first publication of a basic science paper in Nature for the study of energetic materials in China. It is also a stable N5-ion-containing salt prepared at Nanjing University of Science and Technology in January 2017 and published relevant results. After Science magazine, another major breakthrough in this field. (Reporter Zhang Hao correspondent replaced)
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