organic compounds
Open access
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 (20).
organic compounds
Open access
The crystal strucure of the title compound, C7H9NO, displays N—HO hydrogen bonds which link molecules related by translation along the b axis, and O—HN and further N—HO hydrogen bonds which link molecules related by the 21 screw axis along the c axis. The resulting combination is a hydrogen-bonded layer of molecules parallel to (011).