Silver(i)-based energetic coordination polymers: synthesis, structure and energy performance

Abstract

In this contribution two energetic coordination polymers, [Ag(atz)]_n (1) and [Ag(ntz)]_n (2) (Hatz = 3-amine-1H-1,2,4-triazole and Hntz = 3-nitro-1H-1,2,4-triazole), have been synthesized and structurally characterized. Crystal structure analyses reveal that the title compounds possess two-dimensional (2D) three-connected layers featuring six-membered rings and sixteen-membered rings. Depending on the reaction temperature and the reactant molar ratio, the two compounds with a smaller size have been prepared and their morphologies were studied. Additionally, solid-state photoluminescence of 1 and 2 at room temperature has been investigated. Noteworthily, physicochemical properties show that 1 and 2 exhibit excellent insensitivity and high decomposition temperatures (T_dec = 348 °C for 1 and T_dec = 305 °C for 2). The present research reveals that the substituent NH₂/NO₂ plays a crucial role in the performance of energetic materials.