Heterocyclic-based nitrodicyanomethanide and dinitrocyanomethanide salts: A family of new energetic ionic liquids

The synthesis and characterization of a series of heterocycle-based energetic salts from [[[O.sub.2]NC[(CN).sub.2]].sup.-] and [[[([O.sub.2]N).sub.2]C(CN)].sup.-] is reported. The densities and standard enthalpies of formation for these energetic salts are calculated, which have shown that all the salts possess higher enthalpies of formation than the nitrate analogues.