Acta Crystallographica Section E

Structure Reports Online

Volume 68, Part 1 (January 2012)

organic compounds

Acta Cryst. (2012). E68, o121    [ doi:10.1107/S1600536811052755 ]

2-(2-Carb­oxy­eth­yl)-1,3-dioxoisoindoline-5,6-dicarb­oxy­lic acid methanol monosolvate

S. Khorasani and M. A. Fernandes

Abstract: In the title compound, C13H9NO8·CH3OH, the main mol­ecule possesses three carb­oxy­lic acid groups, which are asymmetrically distributed around the mol­ecule core. This results in hydrogen-bonding motifs ranging from a chain to various rings. The combination of the chain motif together with a carb­oxy­lic dimer R22(8) ring motif creates a ribbon of mol­ecules propagating along the c-axis direction. A second ribbon results from the combination of the chain motif together with a methanol solvent mol­ecule and carboxyl-containing R44(12) ring motif. These two ribbons combine alternately, forming a hydrogen-bonded layer of mol­ecules parallel to (2\overline{1}0).

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