Catena-Poly[piperazinium(2+) [tetraaquazinc(II)-μ-benzene-1,3,5-tricarboxylato-diaquacobalt(II)-μ-benzene-1,3,5-tricarboxylato] dihydrate

Abstract

The asymmetric unit of the title polymer, {(C4H12N2)[ZnCo(C9H3O6)2(H2O)6]·2H2O}n, contains one independent ZnII atom and one independent CoII atom, each of which is located on an inversion center. The benzene-1,3,5-tricarboxyl­ate mol­ecule bridges the ZnII and CoII atoms in two coordination modes, forming a one-dimensional polymeric zigzag chain structure; the chains are further linked by O—H⋯O and N—H⋯O hydrogen bonds, forming a three-dimensional network. In the micropore formed by the packing of the zigzag chains, there is one piperazinium(2+) cation and two water mol­ecules.