Received 2 April 2010
In the title molecule, C12H12N6, the dihedral angles between the pyridine rings and the central dimethanimine-hydrazine group are 0.30 (3) and 13.94 (3)°. Two intramolecular N-HN hydrogen bonds stabilize the planar conformation of one pyridine ring with respect to its hydrazine-residue neighbour, whereas the other pyridine ring and an N-bonded H atom are rotated out of the plane and link the molecules into intermolecular N-HN chains propagating in .
For the phase transition of pyridinium tetrachloroiodate(III) studied by X-ray analysis and dielectric and heat capacity measurements, see: Asaji et al. (2007). For the synthesis of 2-pyridylpyridines via Diels-Alder reactions between 3-pyridyl-1,2,4-triazines and vinylalcanoates, see: Shintou et al. (2005). For the ferroelecric properties of pyridinum perrhenate, see: Wasicki et al. (1997).
Data collection: CrystalClear (Rigaku, 2005); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: PRPKAPPA (Ferguson, 1999).
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SI2254 ).
The author is grateful to the starter fund of Southeast University for financial support to buy the X-ray diffractometer.
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Shintou, T., Ikeuchi, F., Kuwabara, H., Umihara, K. & Itoh, I. J. (2005). Chemistry Lett. 34, 836-838.
Wasicki, J., Czarnecki, P., Pajak, Z., Nawrocik, W. & Szepanski, W. (1997). J. Chem. Phys. 107, 576-578.