Received 25 August 2010
In the title compound, C9H8Cl2N5+·H2PO4-·C9H11NO [systematic name: 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazin-2-ium dihydrogen phosphate-4-(dimethylamino)benzaldehyde (1/1)], intermolecular N-HO and O-HO hydrogen bonds produce R22(8) and R32(8) rings, generating a layer. Intermolecular N-HN interactions also occur. The dihedral angle between the rings in the cation is 71.73 (12)°.
For the graph-set analysis of hydrogen-bond patterns, see: Bernstein et al. (1995). For related structures, see: Sridhar & Ravikumar (2006). For bond-valence calculations, see: Brese & O'Keeffe (1991).
Data collection: APEX2 (Bruker, 2005); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: JH2198 ).
IUK thanks the Higher Education Commission of Pakistan for its financial support under the project `Strengthening of the Materials Chemistry Laboratory' at GCUL.
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