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Acta Cryst. (2008). E64, o2095 [ doi:10.1107/S1600536808031978 ]
Abstract: In the crystal structure of the title compound, C4H5N2+·C6HCl2O4-, there are three crystallographically independent 1,2-diazinium cations and hydrogen chloranilate anions. The anions are held together by pairs of O-H
O hydrogen bonds to form two types of dimers, one of which is centrosymmetric. The 1,2-diazinium cations are linked on both sides of each dimer via bifurcated N-HO hydrogen bonds to give two kinds of 2-2 cation-anion associations. The 2-2 associations are linked by intermolecular C-HO and C-HN hydrogen bonds, forming a molecular tape along the [230] direction. The tapes are further connected by C-HO hydrogen bonds, forming a three-dimensional network.
Online 11 October 2008
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