Poly[tetraaquabis(μ3-benzene-1,3-dicarboxylato-κ3O:O′:O′′)bis(μ2-benzene-1,3-dicarboxylato-κ3O,O′:O′′)[μ2-1,4-bis(1,2,4-triazol-1-yl)butane-κ2N:N′]tetrazinc(II)

Abstract

In the crystal structure of the title compound, [Zn4(C8H4O4)4(C8H12N6)(H2O)4]n, one ZnII atom is four-coordinated in a slightly distorted tetra­hedral geometry by two O atoms from benzene-1,3-dicarboxyl­ate (BDC) ligands, one N atom from a 1,4-bis­(1,2,4-triazol-1-yl)butane (BTB) ligand and one water mol­ecule, while a second ZnII atom is five-coordinated in a distorted square-pyramidal geometry bridged by four O atoms from BDC ligands and one water mol­ecule. The ZnII atoms are connected by the benzene-1,3-dicarboxyl­ate anions and the nitro­gen ligand into layers parallel to the ac plane. The asymmetric unit consits of two crystallographically independent ZnII cations, two BDC anions and two water mol­ecules in general positions, as well as one-half of the BTB ligand that is completed by inversion symmetry.