“…Nitrate esters are one of the oldest classes of energetic materials which display easy syntheses, high oxygen content and good combustion characteristics. The 2-substituted 5-nitrotetrazoles, especially those with oxygen-containing group substituents, have good oxygen balance and high density [10,11,12,13]. To the best of our knowledge, although the synthesis of 5-nitro-2-nitratomethyl-1,2,3,4-tetrazole (5-nitro-1,2,3,4-tetrazole-2-ylmethyl nitrate, 4 ) has been performed in the past [10], no physical properties or proof of structure were given for the compound.…”