2,2′-Bisdinitromethyl-5,5′-bistetrazole:\nA High-Performance, Multi-Nitro Energetic Material with Excellent\nOxygen Balance

Bistetrazoles\nare highly sought after for developing innovative\nhigh-energy density materials. The 1,1′-substituted bistetrazoles,\nexemplified by TKX-50, have outstanding performance. However, the\nresearch of high-perfomance 2,2′-substituted bistetrazoles\nremains limited. In this work, dinitromethyl groups were introduced\ninto bistetrazole structures as 2,2′-substituted bistetrazoles\n(BDBTZ), which was extensively characterized through NMR, thermal\nanalysis, and single crystal X-ray diffraction, exhibiting excellent\noxygen balance, moderate sensitivity, acceptable thermal stability,\nhigh crystal density, and excellent detonation performance.