catena-Poly[[aqua­barium(II)]-μ-aqua-bis­(μ-2′-carboxy­biphenyl-2-carboxyl­ato)]

• Published in: Acta crystallographica. Section C, Crystal structure communications Vol. 63; no. 3; pp. m91 - m93
• Main Authors: Djehni, Samia, Balegroune, Fadila, Guehria-Laidoudi, Achoura, Dahaoui, Slimane, Lecomte, Claude
• Format: Journal Article
• Language: English
• Published: 5 Abbey Square, Chester, Cheshire CH1 2HU, England Blackwell Publishing Ltd 01-03-2007; International Union of Crystallography
• Subjects: Condensed Matter; Other; Physics
• ISSN: 0108-2701; 1600-5759
• DOI: 10.1107/S0108270107001874

In the title compound, [Ba{HOOC(C6H4)2CO2}2(H2O)2] or [Ba(C14H9O4)2(H2O)2], the Ba atoms are coordinated by nine O atoms, six from two 2′‐carboxy­biphenyl‐2‐carboxyl­ate (Hbpdc−) ligands and three from three coordinated water mol­ecules, resulting in the formation of face‐sharing distorted monocapped square anti­prisms. The Hbpdc− ligands bridge the Ba atoms to form a one‐dimensional helical polymer, with a Ba⋯Ba distance across the chain of 4.1386 (17) Å. Adjacent chains are parallel to each other. The two independent ligands are tetra­dentate and have the same coordination mode, exhibiting μ‐oxo bridges and η8‐chelation. The crystal structure is further stabilized by hydrogen bonds within each chain.