Hexane-1,6-diammonium dinitrate

The hexane-1,6-diammonium cation of the title compound, C₆H ₁₈N₂ ²⁺·2NO₃ ^-, lies across a crystallographic inversion centre and shows significant deviation from planarity in the hydro-carbon chain. This is evident from the torsion angle of -64.0°(2) along the N - C - C - C bond and thse torsion angle of -67.1°(2) along the C - C - C - C bonds. An intricate three-dimensional hydrogen-bonding network exists in the crystal structure, with each H atom on the ammonium group exhibiting bifurcated inter-actions to the nitrate anion. Complex hydrogen-bonded ring and chain motifs are also evident, in particular a 26-membered ring with graph-set notation R₄⁴(26) is observed.