catena-Poly[[aquabis(1H-benzimidazole-kappa N3)manganese(II)]-mu-adipato].

In the title polymeric complex, [Mn(C6H8O4)(C7H6N2)2(H2O)]n, the MnII atom is surrounded by two adipate dianions, two benzimidazole molecules and one coordinated water molecule. The Mn atoms and coordinated water molecule are located on a twofold axis, and the bridging adipate ligand is located on an inversion center. The adipate dianions bridge neighboring MnII atoms to form polymeric chains. Each MnII atom is seven-coordinate, the longest Mn-O bond length being 2.5356 (16) A.