Acta Cryst. (2013). E69, o159-o160
[ doi:10.1107/S1600536812051434 ]
Abstract: The asymmetric unit of the title salt, C6H9ClN22+·2H2PO4-, contains two dihydrogenphosphate anions and one 2-chlorobenzene-1,4-diaminium dication. The H2PO4- anions are interconnected through strong O-HO hydrogen bonds to form two-dimensional infinite layers parallel to (001). The organic entities are anchored to the inorganic layers through N-HO hydrogen bonds, and through weak C-ClO halogen bonds [3.159 (2) Å, 140.48 (7)°]. No - stacking interactions between neighboring aromatic rings or C-H interactions towards them are observed. Minor disorder is observed for the Cl atom and one hydroxy group [minor-component occupancy = 3.29 (9)%].
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