Date Published: April 01, 2011
Publisher: International Union of Crystallography
Author(s): Jian Li.
In the anion of the title salt, C6H18N22+·2C9H3Cl4O4−, the methoxycarbonyl and carboxyl groups are aligned at dihedral angles of 71.0 (3) and 100.9 (3)°, respectively, with the aromatic ring. The asymmetric unit contains half a cation and one anion. In the crystal, intermolecular N—H⋯O, C—H⋯Cl and C—H⋯O hydrogen bonds link the components into a three-dimensional network.
For related structures, see: Li (2011 ▶); Liang (2008 ▶).