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Advanced Assembly of 1,2,5-Oxadiazole Units for the Construction of Thermally Stable High-Performance Organic
Alexander A Larin1, Ekaterina V Dubasova2, Ivan V Ananyev2
1N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, Moscow 119991, Russian Federation.
Abstract:
The design and synthesis of advanced energetic non-hydrogen 1,2,5-oxadiazole assemblies were realized. All target azo-1,2,5-oxadiazole assemblies have high densities (1.89-1.90 g cm-3), good thermal stabilities (180-181 °C), high enthalpies of formation (933-955 kJ mol-1), and positive oxygen balance with respect to CO (+7.5%). As a result, these compounds exhibit high detonation velocities (9.0 km s-1), high detonation pressures (38 GPa), and excellent heats of detonation (5.82-5.85 kJ g-1), unveiling new opportunities in the search for next-generation functional organic materials.
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