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Poly[[tetra-aquadi-?4-fumarato-?2-oxalato-dierbium(III)] tetra-hydrate].

ABSTRACT: The title compound, {[Er2(C4H2O4)2(C2O4)(H2O)4]·4H2O} n , was synthesized by the reaction of erbium nitrate hexa-hydrate with fumaric acid and oxalic acid under hydro-thermal conditions. The Er(3+) cation (site symmetry ..2) is eight-coordinated by six O atoms from four fumarate anions (site symmetry ..2) and one bidentate oxalate anion (site symmetry 222), and by two water mol-ecules. The complex exhibits a three-dimensional structure consisting of oxalate pillared Er-fumarate layers with channels occupied by coordinating and lattice water mol-ecules. The three-dimensional structure features by Owater-H?O hydrogen bonds involving both the coordinating and lattice water mol-ecules.

SUBMITTER: Yang QF

PROVIDER: S-EPMC3588352 | biostudies-literature | 2013 Jan

REPOSITORIES: biostudies-literature

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Poly[[tetra-aquadi-μ4-fumarato-μ2-oxalato-dierbium(III)] tetra-hydrate].

Yang Qing-Feng QF Wang Xiao-Zhong XZ Xue Ping P

Acta crystallographica. Section E, Structure reports online 20121215 Pt 1

The title compound, {[Er2(C4H2O4)2(C2O4)(H2O)4]·4H2O} n , was synthesized by the reaction of erbium nitrate hexa-hydrate with fumaric acid and oxalic acid under hydro-thermal conditions. The Er(3+) cation (site symmetry ..2) is eight-coordinated by six O atoms from four fumarate anions (site symmetry ..2) and one bidentate oxalate anion (site symmetry 222), and by two water mol-ecules. The complex exhibits a three-dimensional structure consisting of oxalate pillared Er-fumarate layers with chann ...[more]

PMID: 23476347

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