Synthesis and Characterization of Novel Azido-triazine Energetic Compounds Derived from s-triazine

Four nitro aromatic triazine intermediates were synthesized by nucleophilic substitution using cyanuric chloride as the precursor.Then four new azido-triazine energetic compounds,4,6-diazido-N-(2-nitrophenyl)-1,3,5-triazin-2-amine,4,6-diazido-N-(3-nitrophenyl)-1,3,5-triazin-2-amine,4,6-diazido-N-(4-nitrophenyl)-1,3,5-triazin-2-amine,2,4-diazido-6-(2-(2,4-dinitrophenyl)hydrazinyl)-1,3,5-triazine,were obtained by the reaction of four intermediates with NaN3.The structures of the four compounds were characterized by IR,1 H NMR,13 C NMR,MS and the thermal behaviors were studied by TG-DSC.Their theoretical density,standard enthalpy of formation,detonation velocity and detonation pressure were predicted by B3LYP/6-311G**method.The results show that the four compounds have better thermal stability.The introduction of azide group makes four compounds own high enthalpy of formation.Compound 2,4-diazido-6-(2-(2,4-dinitrophenyl)hydrazinyl)-1,3,5-triazine shows relatively good performance among the four azido-triazine energetic compounds.