Acta Cryst. (2009). E65, o2400  [ doi:10.1107/S1600536809035107 ]

2,2'-(1,3,5,7-Tetraoxo-1,2,3,5,6,7-hexahydropyrrolo[3,4-f]isoindole-2,6-diyl)diacetic acid N,N-dimethylformamide disolvate

C. Ge, X. Li, X. Zhang, Y. Zhao and R. Zhang

Abstract: The asymmetric unit of the title compound, C₁₄H₈N₂O₈·2C₃H₇NO or L·2DMF (DMF = N,N-dimethylformamide), contains one half of the centrosymmetric molecule L and one solvent molecule, which is disordered between two orientations in a 0.555 (4):0.445 (4) ratio. Intermolecular O-HO hydrogen bonds link one L and two DMF molecules into a centrosymmetric hydrogen-bonded cluster. The crystal packing is further stabilized by weak intermolecular C-HO hydrogen bonds.

Online 9 September 2009

Copyright © International Union of Crystallography
IUCr Webmaster