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Hydro-thermal Synthesis and Crystal Structure of a New lanthanum(III) Coordination Polymer With Fumaric Acid

Hydro-thermal Synthesis and Crystal Structure of a New lanthanum(III) Coordination Polymer With Fumaric Acid

Hayet Anana, Chahrazed Trifa, Sofiane Bouacida, Chaouki Boudaren, Hocine Merazig

Acta Crystallogr E Crystallogr Commun. 2015 Apr 22;71(Pt 5):m114-5.

PMID: 25995891

Abstract:

The title compound, poly[di-aqua-tris-(μ4-but-2-enedioato)(μ2-but-2-enedioic acid)dilanthanum(III)], [La2(C4H2O4)3(C4H4O4)(H2O)2] n , was synthesized by the reaction of lanthanum chloride penta-hydrate with fumaric acid under hydro-thermal conditions. The asymmetric unit comprises an La(III) cation, one and a half fumarate dianions (L (2-)), one a half-mol-ecule of fumaric acid (H2 L) and one coordinated water mol-ecule. Each La(III) cation has the same nine-coordinate environment and is surrounded by eight O atoms from seven distinct fumarate moieties, including one proton-ated fumarate unit and one water mol-ecule in a distorted tricapped trigonal-prismatic environment. The LaO8(H2O) polyhedra centres are edge-shared through three carboxyl-ate bridges of the fumarate ligand, forming chains in three dimensions to construct the MOF. The crystal structure is stabilized by O-H⋯O hydrogen-bond inter-actions between the coordin-ated water mol-ecule and the carboxyl-ate O atoms, and also between oxygen atoms of fumaric acid.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP20211761	Lanthanum(III) chloride hydrate		20211-76-1	Price

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