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Surface Functionalization of Metal-Organic Frameworks for Improved Moisture Resistance
Published on: September 5, 2018
Oxadiazole Alliance with an Aminodinitrophenyl Scaffold: En Route to Heat-Resistant Friction-Insensitive Energetic
Ilya D Deltsov1, Dmitry B Vinogradov1, Konstantin A Monogarov2
1N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, 47 Leninsky Prosp., Moscow 119991, Russian Federation.
Abstract:
A set of new energetic materials composed of 1,2,5-oxadiazole moieties coupled with the 4-amino-3,5-dinitrophenyl scaffold through the 1,2,4-oxadiazole linker was designed and synthesized. Synthesized energetic substances exhibit high densities (1.66-1.74 g cm-3), positive enthalpies of formation (17-572 kJ mol-1), and high combined nitrogen-oxygen content (61-67%). Advantageously, newly prepared materials showed high thermal stability (up to 251 °C) and complete insensitivity to friction while retaining good detonation velocities (6.9-7.2 km s-1). Overall, fine modulation of oxadiazole and nitroaromatic scaffolds represents a good strategy for an assembly of balanced and heat-resistant energetic materials.
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