Poly[diaqua-μ2-oxalato-di-μ4-terephthalato-diytterbium(III)]

oleh: Chun-Xiang Wang, Zhi-Feng Li

Format: Article
Diterbitkan: International Union of Crystallography 2010-09-01

Deskripsi

The crystal structure of the title complex, [Yb2(C8H4O4)2(C2O4)(H2O)2]n, features an extended three-dimensional framework made up of Yb3+ ions coordinated by terephthalate ligands, oxalate ligands and water molecules. The Yb3+ ion has a distorted square-antiprismatic 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.