Controllable Structural Modulation: Assembling Variable Dimension Energetic Metal-Organic Frameworks via Free Protons.

Herein, we provide an efficient strategy for constructing three-dimensional (3D) energetic coordination polymers (ECPs), namely, metal-organic frameworks (EMOFs), avoiding solvent coordination without changing the organic ligands or metal nodes. Three ECPs with the same ligand and metal center, namely, two-dimensional (2D) layer ECP [Pb(HOBTT)(HO)] (), 3D solvent-free EMOFs [Pb(HOBTT)] (), and dense [Pb(OBTT)] () (HOBTT = 4,5-bis(1-hydroxytetrazol-5-yl)-2-1,2,3-triazole), were rationally designed and synthesized via free protons. As expected, the theoretical density of (4.080 g·cm) is greater than those of (3.299 g·cm) and (3.055 g·cm). Thermal stabilities indicate that their decomposition temperature exceeds 300 °C. Theoretical calculations show that the detonation performance of is better than that of and . The detonation performance of - was further proven by laser irradiation.