Methods and strategies to achieve hexanitrohexaazaisowurtzitane (HNIW or CL-20): a comprehensive overview

In recent years, hollow cage-type molecular structures have attracted much scientific attention and have unique properties due to their structure. One of these mentioned compounds and most interesting high energetic molecules developed in recent years is the polycyclic nitramine, 2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazaisowurtzitane or (2,4,6,8,10,12-hexanitro-2,4,6,8,10,12-hexaazatetracyclo dodecane, HNIW or CL-20).