title: Ethane-1,2-diaminium 4,5-dichloro-phthalate.
abstract: In the structure of the title compound, C(2)H(10)N(2) (2+)·C(8)H(2)Cl(2)O(4) (2-), the dications and dianions form hydrogen-bonded ribbon substructures which enclose conjoint cyclic R(2) (1)(7), R(1) (2)(7) and R(4) (2)(8) associations and extend down the c-axis direction. These ribbons inter-associate down b, giving a two-dimensional sheet structure. In the dianions, one of the carboxyl-ate groups is essentially coplanar with the benzene ring, while the other is normal to it [C-C-C-O torsion angles = 177.67 (12) and 81.94 (17)°, respectively].
authors.forename: Graham
authors.initials: G
authors.lastname: Smith
authors.forename: Urs D
authors.initials: UD
authors.lastname: Wermuth