Nitrogen-rich energetic monoanionic salts of 3,4-bis(1 H-5-tetrazolyl) furoxan

3,4-Bis(1H-5-tetrazolyl)furoxan (H ₂BTF, 2) and its monoanionic salts that contain nitrogen-rich cations were readily synthesized and fully characterized by multinuclear NMR ( ¹H, ¹³C) and IR spectroscopy, differential scanning calorimetry (DSC), and elemental analyses. Hydrazinium (3) and 4-amino-1,2,4-triazolium (7) salts crystallized in the monoclinic space group P2(1)/n and have calculated densities of 1.820 and 1.764 g cm ^-3, respectively. The densities of the energetic salts range between 1.63 and 1.79 g cm ^-3, as measured by a gas pycnometer. Detonation pressures and detonation velocities were calculated to be 23.1-32.5 GPa and 7740-8790 m s ^-1, respectively.