(4,4′-Bipyridine)dichloroman­ganese(II), a two-dimensional ­coordination polymer

The title compound, [MnCl₂(C₁₀H₈N₂)]_n, crystallizes with a two-dimensional network constructed from linear chains of edge-sharing MnCl₄ square-planar units cross-linked by bidentate 4,4′-bi­pyridine bridges. The Mn atom and the bipyridine moieties lie on sites with 222 crystallographic symmetry; the Cl atom lies on a twofold axis. The bi­pyridine mol­ecule is twisted about the central C—C bond by 33.5 (3)°.