| Abstract: | The title compound, Co(C8H4NO2)2(H2O)2]n, which was obtained by the reaction of CoCl2·6H2O with 4‐cyanobenzoic acid, is the first two‐dimensional 4‐cyanobenzoate cobalt(II) polymer. The Co atom lies on a centre of symmetry and its coordination polyhedron is a slightly distorted octahedron, defined by two water and four carboxylate O atoms. The 4‐cyanobenzoate (cba) anion is bridging in a syn‐skew coordination mode, which ensures a two‐dimensional architecture with the building block Co4(cba)4. |
