1D Structure Sodium Coordination Anion based on [5-(Dinitromethylene)-4,5-dihydro-1H-tetrazole]: Syntheses, Structures, and Thermal Behavior

The ten-coordinate complex, (HATr)[Na(DNMz)]·H₂O (1) was synthesized by reaction of 5-(dinitromethylene)-4,5-dihydro-1H-tetrazole (DNMz), sodium hydroxide, and 3-hydrazinium-4-amino-1,2,4-1H-triazolium dichloride (HATr) in aqueous solution and characterized by various physico-chemical techniques. Complex 1 is an energetic material with a nitrogen content of 51.2 % and a decomposition temperature of 128.9 °C. The molecular structure of complex 1 crystallizes in the monoclinic system with P2(1)/c group and shows an infinite 1D chain structure. The heat of formation was determined as –122.27 kJ·mol^–1by using bomb calorimetry. In addition, the kinetic parameters were studied by Kissinger's and Ozawa-Doyle's methods.