title: Tetra-kis(3,5-xylidinium) dihydrogen cyclo-hexa-phosphate dihydrate.
abstract: In the title compound, 4C(8)H(12)N(+)·H(2)P(6)O(18) (4-)·2H(2)O, the complete cyclo-hexa-phosphate anion is generated by inversion symmetry. Crystal cohesion and stability are supported by electrostatic inter-actions which, together with N-H⋯O and O-H⋯O hydrogen bonds, build up a three-dimensional network.
authors.affiliation: Laboratoire de Chimie des Matériaux, Faculté des Sciences de Bizerte, 7021 Zarzouna Bizerte, Tunisia.
authors.forename: Houda
authors.initials: H
authors.lastname: Marouani
authors.forename: Mohamed
authors.initials: M
authors.lastname: Rzaigui