Crystal structure of zinc(II) 4,4′-oxybis(benzoate)

The slightly distorted tetrahedral geometry of Zn(II) in the title compound is completed by four oxygen atoms derived from four different 4,4′-oxybis(benzoate) ligands, with similar Zn-O distances shorter than those found in bis(4,4¢-bipyridine)zinc(II) succinate [4]. Each 4,4′-oxybis(benzoate) ligand coordinates four zinc(II) atoms through its two carboxylate groups in a bis-bidentate fashion leading to a three-dimensional framework.