metal-organic compounds
Open access
In the title compound, {(C4H12N2)2[Li2(P6O18)]·4H2O}n, the phosphate ring anion, located around an inversion center, adopts a chair conformation. Adjacent P6O18 rings are linked via corner-sharing by LiO4 tetrahedra, generating anionic porous {[Li2(P6O18)]4−}n layers parallel to (101). The piperazine-1,4-diium cations occupy the pores and develop hydrogen bonds with the inorganic framework. An extensive network of N—HO and O—HO hydrogen-bonding interactions link the components into a three-dimensional network and additional stabilization is provided by weak C—HO hydrogen bonds.
metal-organic compounds
Open access
In the title salt, (C12H20N2)[CuCl4], the CuII atom occupies a general position in a flattened tetrahedral environment by Cl ligands, characterized by Cl—Cu—Cl angles of 134.04 (3) and 137.18 (4)°. The six-membered piperazinediium ring adopts a chair conformation. The organic cation and inorganic anion interact through N—HCl and C—HCl hydrogen bonds, forming a three-dimensional network.
organic compounds
Open access
In the title compound, 2C12H20N22+·2H3O+·P6O186−·2H2O, a protonated water molecule bridges the centrosymmetrical anionic P6O18 ring via O—HO hydrogen bonds. The centrosymmetric hydrogen-bonded rings formed by four oxonium cations and four phosphate anions can be described by an R48(36) graph-set motif. The ring motifs are connected by hydrogen bonds into inorganic layers perpendicular to [100]. The 1-(2,3-dimethylphenyl)piperazine-1,4-diium cations are located between the layers, compensating their negative charge and establishing N—HO hydrogen bonds with the O atoms of the anionic framework.