Poly­[strontium(II)‐μ2‐aqua‐μ5‐4‐carboxyl­ato­phenoxy­acetato]

In the title three‐dimensional coordination polymer, Sr(4‐CPOA)(H₂O)]_n (where 4‐CPOA^2? is the 4‐carboxylatophenoxy­acetate dianion, C₉H₆O₅), each Sr^II atom displays a bicapped triangular prismatic configuration, defined by five carboxyl and one ether O atom from five different 4‐CPOA^2? ligands, as well as two water mol­ecules. The Sr^II atoms are covalently linked by 4‐CPOA^2? ligands and water mol­ecules, giving rise to a three‐dimensional open framework. In previously studied polymers of this type, the 4‐CPOA^2? ligand shows a variety of binding modes to metal ions, from mono‐ to pentadentate. In the present Sr^II complex, a novel hexadentate bridging mode is observed.