organic compounds
Open access
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 π–π stacking interactions between neighboring aromatic rings or C—Hπ interactions towards them are observed. Minor disorder is observed for the Cl atom and one hydroxy group [minor-component occupancy = 3.29 (9)%].
organic compounds
Open access
In the title compound, C5H9N4+·NO3−, the organic cations and the nitrate anions have both crystallographically imposed mirror symmetry and are linked via N—HO hydrogen bonds, forming infinite chains running along the c-axis direction. The values of the N—O bond lengths [1.2256 (19)–1.2642 (18) Å] and O—N—O angles [118.39 (16)–121.64 (15)°] indicate that the nitrate anion exhibits a slightly distorted C3h geometry. The N atom of the NH2 group has sp2 character.