Keywords
azoxy compounds
combustion calorimetry
cyano compounds
differential scanning calorimetry
enthalpy of formation
furazans
X-ray diffraction analysis
Abstract
Three novel energetic furazans with a cyano-NNO-azoxy group were synthesized using cyanamide and 2,2,2-tri- fluoro-N-(4-nitrosofurazan-3-yl)acetamide as the starting compounds. (Cyano-NNO-azoxy)furazans obtained display high experimental enthalpies of formation (+742 to +1073 kcal kg−1), good thermal stability (Tonset = 193–222 °C) and moderate mechanical sensitivity. These compounds may be of interest as energetic fillers in solid fuels for ramjet engines and in solid composite propellants.
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