Acta Cryst. (2004). E60, o2485-o2487 [ doi:10.1107/S1600536804030557 ]
Abstract: Slight pyramidalization at the four N atoms leads to a twist boat conformation for the tetrazinane ring of the title compound, C4H8N4O2. In the crystal structure, the tetrazinane-3,6-dione molecules are disordered over two conformations with opposite ring puckerings, and are linked into two-dimensional sheets by N-HO hydrogen bonding.
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