Curious cases of 3,6-dinitropyrazolo[4,3-c]pyrazole-based energetic cocrystals with high nitrogen content: an alternative to salt formation.

Two structurally interesting 3,6-dinitropyrazolo[4,3-c]pyrazole-based energetic cocrystals were prepared and confirmed by single crystal X-ray diffraction. As novel energetic materials, these two unusual neutral acid-base complexes possess high nitrogen content, good detonation properties, and improved impact and friction sensitivities which highlight their potential energetic applications.