Abstract

By integrating two approaches─an ethene bridge to enhance safety and planarity to support good density─we have achieved new high-energy-density materials 4-8. Compounds 4-8 show good detonation performance (Dv = 8037-9305 m s-1 and DP = 24.7-33.4 GPa) and large enthalpies of formation (260.1-1444.9 kJ mol-1). The detonation velocity of compound 8 (9305 ms-1) approaches that of HMX (9320 ms-1), which suggests it is a competitive high-energy-density material.

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