Acta Cryst. (2003). E59, o1149-o1150  [ doi:10.1107/S1600536803015101 ]

Ammonium 1,3,4,6-tetranitro-2,5-diazapentalene

R. J. Butcher, J. C. Bottaro and R. Gilardi

Abstract: The structure of the ammonium salt of the dianion of 1,3,4,6-tetranitro-2,5-diazapentalene is reported, viz. 2NH₄⁺·C₆N₆O₈^2-. Only three atoms of the central 2,5-diazapentalene skeleton are unique, as the anion possesses 2/m symmetry. The ammonium cation forms strong hydrogen bonds to the aza N and nitro O atoms, forming a sheet in the ac plane.

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