Abstract: | In the title coordination polymer, Ba(1,3‐BDOA)(H2O)2]n (where 1,3‐BDOA2? is the m‐phenylenedioxydiacetate dianion, C10H8O6), each BaII ion is ten‐coordinated by six carboxyl O atoms and two ether O atoms from different 1,3‐BDOA2? ligands, as well as by two water molecules, thus defining a dodecahedron. The BaII atoms are covalently linked by 1,3‐BDOA2? ligands in different crystallographic directions, giving rise to a three‐dimensional open framework. The crystal structure is further stabilized by hydrogen bonds and π–π stacking interactions. In previously studied polymers of this type, the 1,3‐BDOA2? ligand showed multiple bridging modes with metal ions, including bi‐, tri‐, tetra‐ and hexadentate. The title BaII complex represents a novel three‐dimensional coordination polymer constructed by octadentate bridging 1,3‐BDOA2? ligands. |