Crystal structure of poly[(N,N-di­methyl­acetamide-κO)(μ(4)-5-methyl­isophthalato-κ(5) O:O,O′:O′′:O′′′)manganese(II)]

The title compound, poly[(N,N-di­methyl­acetamide-κO)(μ(4)-5-methyl­isophthalato-κ(5) O,O′:O′,O′′:O′′)manganese(II)], [Mn(C(9)H(6)O(4))(C(3)H(7)NO)](n), was obtained from a mixture containing MnCl(2)·4H(2)O and 5-methyl­isophthalic acid in N,N-di­methyl­acetamide solution. The Mn(2+) ion is coordinated by five O atoms from four bridging 5-methyl­isophthalate ligands and one O atom from one N,N-di­methyl­acetamide ligand, defining a considerably distorted coordination polyhedron with one very long Mn—O bond of 2.623 (2) Å. The Mn(2+) ions are joined by carboxyl­ate groups, forming rod-shaped secondary building units along the a axis. The rods are further connected by 5-methyl­isophthalate ligands to form the pcu (primitive cubic net) structure.