title: Poly[hexaaquaocta-mu3-hydroxido-tetrakis(mu3-methylenedisulfonato)-mu6-oxido-hexaytterbium(III)]: the first lanthanide sulfonate containing a hexanuclear Ln-hydroxide/oxide cluster synthesized via ;ligand-controlled acidolysis' of lanthanide oxide.
abstract: The combination of redox and acid sites in lanthanide sulfonate leads to a potentially multifunctional catalyst for oxidation reactions. The title lanthanide sulfonate compound, [Yb(6)(CH(2)O(6)S(2))(4)O(OH)(8)(H(2)O)(6)](n), exhibits a novel one-dimensional columnar structure along the a direction. In the building unit of the columnar oligomer, a face-capped lanthanide octahedron, viz. [Ln(6)(mu(6)-O)(mu(3)-OH)(8)](8+), is found with an interstitial mu(6)-oxide group lying on an inversion centre, reports of which are rare in the literature. Adjacent hexameric cations are connected via two pairs of O-S-O bridges, thus forming a neutral column. The three-dimensional network is stabilized by an intricate pattern of intercolumnar hydrogen bonds.
authors.affiliation: Jiangsu Key Laboratory for the Chemistry of Low-Dimensional Materials, Department of Chemistry, Huaiyin Teachers' College, 111 West Changjiang Road, Huai'an 223300, Jiangsu, People's Republic of China.
authors.forename: Zai Chao
authors.initials: ZC
authors.lastname: Zhang