metal-organic compounds
In the title compound, [Mn(C4H2O4)(C7H6N2)3]n, maleate dianions bridge neighbouring MnII ions to form helical polymeric chains. The Mn ion assumes a distorted octahedral coordination geometry, formed by two maleate and three benzimidazole ligands. One maleate carboxyl group chelates to the Mn atom with longer Mn—O bond distances while the other carboxyl group coordinates in a monodentate manner to the Mn atom.