Scientists of the ZIOC for the first time obtained energetic ionic liquids based on 1,2,5-oxadiazole

The development of liquid energy fuels with improved properties is an important direction in the development of the modern space industry. Hydrazine-based fuels currently in use are highly toxic and volatile substances that can cause serious harm to human health and safety. In recent years, ionic liquids based on nitrogen-containing heterocyclic compounds have been considered as promising new fuels. They are characterized by low vapor pressure, high density, resistance to mechanical stress and low toxicity.

Scientists from the Laboratory of Nitrogen-Containing Compounds of the ZIOC for the first time obtained energetic ionic liquids consisting of a combination of 1,2,5-oxadiazole and imidazole connected by a methylene bridge as a cation and various explosive anions. Due to good experimental densities and high calculated enthalpies of formation, the synthesized compounds have detonation velocities at the level of the trinitrotoluene, and their combustion characteristics exceed those of the reference 2-hydroxyethylhydrazinium nitrate. These results, along with the impact insensitivity of the resulting ionic liquids and their high content of nitrogen and oxygen, indicate that these materials can serve as promising energy fuels.

Source:

Alexander V. Shaferov, Sergey T. Arakelov, Fedor E. Teslenko, Alla N. Pivkina, Nikita V. Muravyev, Leonid L. Fershtat First Example of 1,2,5-Oxadiazole-Based Hypergolic Ionic Liquids: a New Class of Potential Energetic Fuels // Chem. Eur. J., 2023, accepted manuscript. DOI: 10.1002/chem.202300948.