Metal-organic frameworks(MOFs)have attracted great attention due to their intriguing molecular topologies and potential applications in chemical separation,gas storage,drug delivery,catalysis and chemical sensors.However,there are very few studies that have been reported on their potential application in energetic materials.Herein,a structurally unique class of 3D energetic MOFs,namely,Cu(atrz)3(NO3)2(1)and Ag(atrz)1.5(NO3)(2)based on 4,4-azo-1,2,4-triazole(atrz)ligand was synthesized by a simple and straightforward manner.There compounds exhibit excellent physical and detonation properties,such as higher thermal stabilities,lower sensitivities,and higher heats of detonation.Specifically,1 exhibits the unprecedented heat of detonation(3.62 kcal·g-1),which is the strongest known metal-based energetic compounds,and even higher than those of CL-20 and ONC.The present study provides a new insight for future development of new-generation high-performance explosive,and we anticipate the methodology described herein can be extended to produce a new family of 3D metal organic explosives.