Received 21 November 2013
In the crystal structure of the title compound, C6H8N3O2+·C6H2N3O7-·H2O, N-HO and O-HO hydrogen bonds link the components into a two-dimensional network parallel to (010). In addition, there are pairs of weak inversion-related C-HO hydrogen bonds within the two-dimensional network. The three nitro groups are twisted by 1.6 (3), 7.8 (3) and 12.1 (3)° from the ring plane in the anion, while in the cation, the nitro group makes a dihedral angle of 4.6 (2)° with the ring.
For the use of picric acid acid as a co-crystallization agent, see: Herbstein & Kaftory (1976); Dubost et al. (1981); Harrison et al. (2007); Peng et al. (2011); Zeng et al. (2011); Dey et al. (2011).
Data collection: SMART (Bruker, 2001); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: PLATON (Spek, 2009); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: LH5673 ).
This work received financial support mainly from the National Key Fundamental Project (No. 20603030).
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