catena-Poly[4,4′-bipyridinium[[cis-dichloromanganese(II)]-di-μ-chloro]], a novel manganese(II) coordination polymer with 4,4′-bipyridinium

The title novel manganese(II) coordination polymer, {(C10H10N2)[MnCl4]}(n), consists of a one-dimensional in nite zigzag chain composed of polymeric [MnCl4](2-). units in which each Mn2+ ion is located on a twofold rotation axis and is coordinated to two terminal Cl atoms and four bridging chloro ligands. Adjacent Mn2+ ions are linked by double Cl bridges arranged about a centre of inversion, thus forming anionic chains of distorted edge-sharing octahedra. Rows of approximately parallel 4,4'-bipyridinium cations run side-by-side with the MnCl4 chains. A two-dimensional layer structure is constructed via hydrogen bonds and by additional pi-pi stacking interactions.