Received 9 December 2011
The title compound, C9H8N2O8, was obtained by the reaction of imidazole-4,5-dicarboxylic acid and 2-chloroacetic acid. An intramolecular O-HO hydrogen bond occurs. The crystal packing is stabilized by intermolecular O-HO and C-HO hydrogen bonds, which link molecules into a three-dimensional network.
The title compound is a potential polydentate ligand for the construction of metal-organic frameworks. For applications of metal-organic frameworks, see: Gao et al. (2005); Gurunatha et al. (2008); Wang et al. (2010); Zhang & Li (2010). For related structures, see: Chai et al. (2010); Liu et al. (2004); Lu et al. (2006).
Data collection: APEX2 (Bruker, 2008); cell refinement: SAINT (Bruker, 2008); data reduction: SAINT; 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: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: RZ2687 ).
This work was supported by the NSFC (No. 21064006) and the Natural Science Foundation of Gansu (1010RJZA018), which are gratefully acknowledged.
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