Wang Guodong, Liu Yucun*, Liu Guoqing, Jing Suming and Liao Longyu Pages 1042 - 1047 ( 6 )
A new energetic organic potassium salt of dihydridobis (3-nitro-1,2,4-triazolyl) borate was synthesized from 3-nitro-1,2,4-triazole and potassium borohydride at 110 °C, and structurally characterized by elemental analysis, IR spectra, 13C NMR and singlecrystal X-ray diffraction. Results show that the crystal belongs to monoclinic system with space group of p21 / C and cell parameters of a = 10.335 (8) Å, B = 10.812 (8) Å, C = 9.821 (8) Å, α = 90 ˚, β = 106.470 (13), γ = 90 °, z = 4. Its crystal density is 1.755g/cm3. Thermal properties were studied with TG-DTA and DSC. There was only one sharp decomposition peak temperature of 270 °C at the heating rate of 10 °C/ min-1. The activation energies EK = 48.0kJ/mol-1 and EO = 49.8kJ/mol-1 were calculated by the Kissinger method and Ozawa method respectively (CCDC: 1975139).
Energetic complex, 3-nitro-1-2-4-triazole, crystal structure, thermal decomposition, combustion catalyst, propellant.
School of Environment and Safety Engineering, North University of China, Taiyuan 030051, School of Environment and Safety Engineering, North University of China, Taiyuan 030051, Shijiazhuang Campus, Army Engineering University of PLA, Shijiazhuang 050003, School of Environment and Safety Engineering, North University of China, Taiyuan 030051, Institute of Chemical Materials, CAEP, Mianyang 621900