2-Amino­terephthalic acid N,N-dimethyl­formamide disolvate

摘要

The asymmetric unit of the title structure, C8H7NO4·2C3H7NO, contains one 2-amino­terephthalic acid and two N,N-dimethyl­formamide mol­ecules. Strong O—H⋯O 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—H⋯O hydrogen bonding, whereas the second one takes part in an inter­molecular N—H⋯O connection. Furthermore, the crystal is stabilized by weak C—H⋯O hydrogen bonds.