Privileged Scaffold Hybridization for Rigid Tetracyclic Energetics: Uniting Performance, Stability, and Safety

This study underlines the strategic use of privileged scaffold hybridization in designing and synthesizing a unique new class of polynitro energetic compounds. These compounds exhibit high densities (1.77-1.87 g cm⁻³), high positive heats of formation (652.9-793.3 kJ mol⁻¹), good detonation performance (VOD, 8165-8721 m s⁻¹; DP, 27.38-32.87 GPa), good thermal stability (118-213 °C), and low sensitivity (IS > 7.5 J; FS > 240 N). These findings demonstrate that the fused [5,5,5,6]-tetracyclic backbone in these energetic compounds plays a vital role in achieving excellent energetic performance and stability.