Bis[2-(2-hydroxyethyl)pyridinium] μ-decavanadato-bis[pentaaquamanganate(II)] tetrahydrate

The structure of the title compound, (C7H10NO)(2)[Mn2V10O28(H2O)(10)]center dot 4H(2)O or (C5H4NHCH2CH2OH)(2)[{Mn(H2O)(5)}(2)V10O28]center dot 4H(2)O, at 293 (2) K has triclinic (P (1) over bar) symmetry. The asymmetric unit consists of one half of a decavanadate anion of C-i symmetry, one [Mn(H2O)(5)](2+) group, one 2-(2-hydroxyethyl) pyridinium cation and two solvent water molecules. The decavanadate ion bridges between two [Mn(H2O)(5)](2+) groups, thus forming a dodecanuclear complex unit. Complex units are connected via a hydrogen-bonding network, forming supramolecular layers lying in the (001) plane. Cations and solvent water molecules are located between these layers.