title: 2-Chloro-benzene-1,4-diaminium bis-(dihydrogenphosphate).
abstract: The asymmetric unit of the title salt, C(6)H(9)ClN(2) (2+)·2H(2)PO(4) (-), contains two dihydrogenphosphate anions and one 2-chloro-benzene-1,4-diaminium dication. The H(2)PO(4) (-) anions are inter-connected through strong O-H⋯O hydrogen bonds to form two-dimensional infinite layers parallel to (001). The organic entities are anchored to the inorganic layers through N-H⋯O hydrogen bonds, and through weak C-Cl⋯O halogen bonds [3.159 (2) Å, 140.48 (7)°]. No π-π stacking inter-actions between neighboring aromatic rings or C-H⋯π inter-actions towards them are observed. Minor disorder is observed for the Cl atom and one hy-droxy group [minor-component occupancy = 3.29 (9)%].
authors: Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna,  Tunisia.
authors: Mohamed Lahbib
authors: ML
authors: Mrad
authors: Matthias
authors: M
authors: Zeller
authors: Mohamed
authors: M
authors: Rzaigui
authors: Cherif
authors: C
authors: Ben Nasr