Received 14 May 2013
The asymmetric unit of the title co-crystal, C6H7N3O·0.5C4H6O4, comprises one N'-hydroxypyridine-2-carboximidamide molecule and half a succinic acid molecule (the whole molecule is generated by inversion symmetry). In the crystal, molecules are assembled into columns along , via strong N-HO, O-HO and O-HN hydrogen bonds.
Data collection: CrysAlis PRO (Oxford Diffraction, 2009); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: BG2507 ).
This project was supported by the Expert Project of Key Basic Research of the Ministry of Science and Technology of China (grant No. 2003CCA00800), the Science and Technology Department of Zhejiang Province (grant No. 2006 C21105) and the Education Department of Zhejiang Province.
Biradha, K., Roy, S. & Mahata, G. (2009). Cryst. Growth Des. 9, 5006-5008.
Desiraju, G. R. (1995). Angew. Chem. Int. Ed. 34, 2311-2327.
Desiraju, G. R. (2003). J. Mol. Struct. 656, 5-15.
Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339-341.
Oxford Diffraction (2009). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, Oxfordshire, England.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.