Received 23 September 2009
In the dication of the title salt, C6H16N22+·2C6H4NO2-, the two ammonium groups are in the equatorial positions of the chair-shaped cyclohexyl ring. In the crystal, the cations and anions are linked by N-HO and N-HN hydrogen bonds, forming a layer network parallel to the ac plane. Weak - interactions between adjacent pyridine rings with a centroid-centroid distance of 3.589 (2) Å are also present.
Data collection: SMART (Bruker, 2000); cell refinement: SAINT (Bruker, 2000); 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 (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: NG2649 ).
This work was supported by a Korea Research Foundation Grant funded by the Korean Government (MOEHRD) (KRF-2007-412-J02001).
Bruker (2000). SMART and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA.
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565.
Kim, N.-H. & Ha, K. (2009a). Acta Cryst. E65, o1415.
Kim, N.-H. & Ha, K. (2009b). Acta Cryst. E65, o2151.
Kim, N.-H. & Ha, K. (2009c). Acta Cryst. E65, o2504.
Lin, H.-M. & Lii, K.-H. (1998). Inorg. Chem. 37, 4220-4222.
Lin, C.-H. & Wang, S.-L. (2000). Chem. Mater. 12, 3617-3623.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Spek, A. L. (2009). Acta Cryst. D65, 148-155.