title: Poly[diaqua-μ(2)-oxalato-di-μ(4)-terephthalato-diytterbium(III)].
abstract: The crystal structure of the title complex, [Yb(2)(C(8)H(4)O(4))(2)(C(2)O(4))(H(2)O)(2)](n), features an extended three-dimensional framework made up of Yb(3+) ions coordinated by terephthalate ligands, oxalate ligands and water mol-ecules. The Yb(3+) ion has a distorted square-anti-prismatic coordination formed by one aqua ligand, two O atoms from an oxalate ligand and five O atoms belonging to four terephthalate anions. Two symmetry-independent terephthalate anions, as well as the oxalate anion, occupy special positions on inversion centers. The water molecule participates in O-H⋯O hydrogen bonding with both terephthalate anions.
authors: School of Materials & Chemical Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, People's Republic of China.
authors: Chun-Xiang
authors: CX
authors: Wang
authors: Zhi-Feng
authors: ZF
authors: Li
references: Acta Crystallogr A. 2008 Jan;64(Pt 1):112-22
references: 18156677
references: Acta Crystallogr Sect E Struct Rep Online. 2009 Sep 05;65(Pt 10):m1157
references: 21577697