Ag()-based high-energy metal organic frameworks (HE-MOFs) incorporating coordinated moieties in channels: synthesis, structure and physicochemical properties

A new Ag( i )-based HE-MOFs, [Ag 3 (H 2 ZTO) 3 (NO 3 ) 2 (CH 3 COO)] n ( 1 , H 2 ZTO = 4,4′-azo-1,2,4-triazol-5-one), was successfully synthesized, which exhibited a compact 3D structure with channels incorporating coordinated NO 3 − and CH 3 COO − ions. Based on TG and DSC analyses results, a superior thermostability and rapidly thermal decomposition process exist in 1 . The non-isothermal kinetic for exothermic process of 1 is studied by Kissinger's and Ozawa's methods. The sensitivity tests and calculated detonation properties show that 1 can be used as a potential explosive. By comparing 1 with the previously reported HE-MOFs atrz-1 and atrz-2 , a revelation for regulating the heat of detonation of 3D HE-MOFs based on the coordinated moieties in channels has been found. In addition, 1 was explored as a combustion promoter to accelerate the thermal decomposition of RDX (1,3,5-trinitro-1,3,5-triazinane) by differential scanning calorimetry. A new Ag( i )-based HE-MOFs exhibited a compact 3D structure with channels containing coordinated NO 3 − and CH 3 COO − ions. The superior density, thermostability, insensitiveness and detonation properties indicated it can be used as potential explosive.