Traditional methods of improving the power and stability of energetic materials have focused primarily on modifying chemical structure, uncovering denser polymorphs, or formulating composite materials. Cocrystallization, a method that combines existing compounds into a single crystal lattice to realize new and unique materials, is an alternative way to achieve significant improvements while avoiding the challenges and uncertainty associated with traditional methods. By cocrystallizing energetic compounds of complementary oxygen balance, stability, or density, novel and attractive energetic materials are created. Furthermore, energetic cocrystals have the potential to act as smart materials by offering solid state properties more complex than those of pure materials.
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Bolton, O.; Matzger, A. J., "Improved Stability and Smart-Material Functionality Realized in an Energetic Cocrystal" Angew. Chemie Int. Ed., 2011, 50, 8960-8963 (online)