2- Oxaadamantane-4,8,9,10-tetrayl tetranitrate: A novel oxa-type cage-like energetic compound

Polynitrooxaadamantanes have a broad application prospect in the field of energetic materials. Herein, a novel cage-like energetic compound, 2-oxaadamantane-4,8,9,10-tetrayl tetranitrate, was synthesized from bicyclo[3.3.1]nonane-2,6-dione via six steps. It exhibits high single-crystal density (1.731 g cm −3 ), good thermal stability (onset decomposition temperature of 177 °C), acceptable detonation performances (theoretical detonation velocity of 7644 m s −1 and detonation pressure of 25 GPa). These results imply that the as-prepared compound has the potential to be used as high energy-density energetic compound. 2-Oxaadamantane-4,8,9,10-tetrayl tetranitrate, a new member of the polynitrooxaadamantane family, was synthesized from classic compound bicyclo[3.3.1]nonane-2,6-dione via six steps. • 2-Oxaadamantane-4,8,9,10-tetrayl tetranitrate was synthesized from bicyclo[3.3.1]nonane-2,6-dione via six linear steps. • It is a new member of the polynitrooxaadamantane family. • It has obviously higher density, better oxygen balance and detonation performance than 4,4,8,8,-tetranitro-2-oxaadamantane.