Acta Cryst. (2012). E68, o2501 [ doi:10.1107/S1600536812031431 ]
Abstract: The asymmetric unit of the title structure, C8H7NO4·2C3H7NO, contains one 2-aminoterephthalic acid and two N,N-dimethylformamide molecules. Strong O-HO hydrogen bonds between the acidic carboxy H atoms of 2-aminoterephthalic acid and the O atoms of both solvent molecules form linear 1:2 complex units. One H atom of the amine group is involved in intramolecular N-HO hydrogen bonding, whereas the second one takes part in an intermolecular N-HO connection. Furthermore, the crystal is stabilized by weak C-HO hydrogen bonds.
Copyright © International Union of Crystallography
IUCr Webmaster