Poly[[hexaaqua(μ2-fumarato-κ4O1,O1′:O4,O4′)bis(μ3-maleato-κ4O1,O1′:O4:O4′)disamarium(III)] hexahydrate

Bao Li,Li-Xin Wu

doi:10.1107/s1600536810045204

Abstract

In the title coordination polymer, {[Sm2(C4H2O4)3(H2O)6]·6H2O}n, the SmIII ion is nine-coordinated by four O atoms from three different maleate ligands, two O atoms from one fumarate ligand and three O atoms from three water molecules. The fumarate ligand lies on an inversion center. Adjacent SmIII ions are bridged by the maleate and fumarate ligands, forming a layer parallel to (011). The layers are further linked by intermolecular O—H⋯O hydrogen bonds into a three-dimensional supramolecular network.

Highlights

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China
In the title coordination polymer, {[Sm2(C4H2O4)3(H2O)6]6H2O}n, the SmIII ion is nine-coordinated by four O atoms from three different maleate ligands, two O atoms from one fumarate ligand and three O atoms from three water molecules
The fumarate ligand lies on an inversion center

Summary

Data collection

State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People’s Republic of China. R factor = 0.017; wR factor = 0.066; data-to-parameter ratio = 17.9. In the title coordination polymer, {[Sm2(C4H2O4)3(H2O)6]6H2O}n, the SmIII ion is nine-coordinated by four O atoms from three different maleate ligands, two O atoms from one fumarate ligand and three O atoms from three water molecules. The fumarate ligand lies on an inversion center. Adjacent SmIII ions are bridged by the maleate and fumarate ligands, forming a layer parallel to (011). The layers are further linked by intermolecular O—H O hydrogen bonds into a three-dimensional supramolecular network

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This work was supported financially by the National Basic

Mo K radiation

Graphite monochromator ω scans