Used in organic synthesis as a highly strained hydrocarbon intermediate, particularly in studies involving energy storage and release through catalyzed rearrangement reactions to norbornadiene. Its unique cage-like structure makes it valuable in photochemical research and as a reactant in Diels-Alder type cycloadditions. Also explored in specialty fuels and rocket propellants due to its high energy density. Investigated for potential use in molecular solar thermal energy storage systems, where norbornadiene is photoisomerized to quadricyclane to store energy, and quadricyclane rearranges back to norbornadiene to release energy reversibly upon exposure to catalysts or heat.