Crystal structure of hexa­kis­(di­methyl­formamide-κO)manganese(II) deca­kis­(di­methyl­formamide)-1κ(5) O,2κ(5) O-[μ-octa­deca­tungstodiphosphato(V)-κO:κO′]dimanganate(II) di­methyl­formamide disolvate

The crystal structure of the title compound, [Mn(C(3)H(7)NO)(6)][{Mn(C(3)H(7)NO)(5)}(2)(μ-P(2)W(18)O(62))]·2C(3)H(7)NO, reveals that the Wells–Dawson-type polyanion [P(2)W(18)O(62)](6−), through terminal O atoms from the belts, bridges two Mn(II) octa­hedral complexes. In the complex anion [{Mn(dmf)(5)}(2)(μ-P(2)W(18)O(62))](2−), located around a twofold rotation axis, the Mn(II) ions are coordinated by five O atoms from di­methyl­formamide (dmf) ligands and to a terminal O atom from the [P(2)W(18)O(62)](6−) polyanion. Another Mn(II) ion, located on an inversion centre, is coordinated by six O atoms from the dmf ligands and forms the [Mn(dmf)(6)](2+) cation. The crystal components are connected through numerous weak C—H⋯O hydrogen bonds to construct a three-dimensional network.