metal-organic compounds
Open access
The asymmetric unit of the title compound, (C8H12NO)2[Mn(H2P2O7)2(H2O)2]·2H2O, consists of half an MnII complex anion, a 2-methoxybenylammonium cation and a solvent water molecule. The MnII complex anion lies across an inversion center, and has a slightly distorted octahedral coordination environment for the MnII ion, formed by two bidentate dihydrogendiphosphate ligands and two water molecules. In the crystal, the components are linked by O—HO and N—HO hydrogen bonds, forming layers parallel to (100). An intramolecular N—HO hydrogen bond is also observed.
metal-organic compounds
Open access
In the title compound, (C9H8N)4[Te2V8O28]·8H2O, the complete heteropolyanion is generated by a crystallographic inversion centre. One of the two quniolinium ions forms an N—HOp (p = polyoxidometallate) hydrogen bond and the other an N—HOw (w = water) hydrogen bond. The water molecules further link the components by O—HOp and O—HOw hydrogen bonds. A number of C—HO interactions and aromatic π–π stacking interactions [shortest centroid–centroid separation = 3.541 (7) Å] are also observed. Together, these generate a three-dimensional network.