Tetrakis(26-di­methyl­pyridinium) di­hydrogen deca­vanadate dihydrate

摘要

The structure of the title compound, (C7H10N)4[H2V10O28]·2H2O, was solved from a non-merohedrally twinned crystal (ratio of twin components ∼0.6:0.4). The asymmetric unit consists of one-half deca­vanadate anion (the other half completed by inversion symmetry), two 2,6-di­methyl­pyridinium cations and one water mol­ecule of crystallization. In the crystal, the components are connected by strong N—H⋯O and O—H⋯O hydrogen bonds, forming a supra­molecular chain along the b-axis direction. There are weak C—H⋯O inter­actions between the chains.