SYNTHESIS AND STRUCTURE OF XADIAZOL-3-YL)-NNO-AZOXYL]-1,2,5-OXADIAZOL-3-AMINE

The synthesis of the energetic compound xadiazol-3-yl)-NNO-azoxyl]-1,2 ,5-oxadiazol-3-amine (3) was achieved in two steps from diaminofurazan (1). Compound 3 was characterized by X-ray diffraction. From the X-ra y structure a bifurcated intramolecular H bond between O(2)-H(2)-N(4) was observed. In addition, intramolecular H bonding was observed betwe en H(1) and N(7)' of an adjacent molecule. One molecule of ethanol and one-half molecule of water per molecule of 3 was observed in the crys tal lattice. However, no H bonding was observed between the solvent mo lecules and 3 in the crystal lattice. Despite the presence of solvent in the crystal lattice, 3 was found to have a high crystal density (d = 1.856 g/cm(3)).