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Crystal structure of [Y6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O.

Le Natur F, Calvez G, Guillou O, Daiguebonne C, Bernot K - Acta Crystallogr Sect E Struct Rep Online (2014)

Bottom Line: In the hexa-nuclear entity, the Y(3+) cations are coordinated by the central μ6-O atom, the O atoms of four μ3-OH and of four water mol-ecules.The crystal packing is quite similar to that of the ortho-rhom-bic [Ln 6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O structures with Ln = La-Nd, Eu-Tb, Dy, except that the title compound exhibits a slight monoclinic distortion.The proximity of the cationic complexes and the lattice water mol-ecules leads to the formation of a three-dimensional hydrogen-bonded network of medium strength.

View Article: PubMed Central - HTML - PubMed

Affiliation: INSA, UMR 6226, Institut des Sciences Chimiques de Rennes, 35 708 Rennes, France.

ABSTRACT
The crystal structure of the title compound {systematic name: octa-μ3-hydroxido-μ6-oxido-hexa-kis-[tetra-aqua-yttrium(III)] octa-iodide octa-hydrate}, is characterized by the presence of the centrosymmetric mol-ecular entity [Y6(μ6-O)(μ3-OH)8(H2O)24](8+), in which the six Y(3+) cations are arranged octa-hedrally around a μ6-O atom at the centre of the cationic complex. Each of the eight faces of the Y6 octa-hedron is capped by an μ3-OH group in the form of a distorted cube. In the hexa-nuclear entity, the Y(3+) cations are coordinated by the central μ6-O atom, the O atoms of four μ3-OH and of four water mol-ecules. The resulting coordination sphere of the metal ions is a capped square-anti-prism. The crystal packing is quite similar to that of the ortho-rhom-bic [Ln 6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O structures with Ln = La-Nd, Eu-Tb, Dy, except that the title compound exhibits a slight monoclinic distortion. The proximity of the cationic complexes and the lattice water mol-ecules leads to the formation of a three-dimensional hydrogen-bonded network of medium strength.

No MeSH data available.


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The crystal structure of [Y6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O in projections along [100], [010] and [001], respectively, from left to right. Y atoms are green, O atoms are red and I atoms are yellow.
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fig3: The crystal structure of [Y6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O in projections along [100], [010] and [001], respectively, from left to right. Y atoms are green, O atoms are red and I atoms are yellow.

Mentions: The hexa­nuclear [Y6(μ6-O)(μ3-OH)8(H2O)24]8+ units are arranged in a body-centred fashion in the crystal structure. Each of these units is surrounded by twelve iodide anions, connecting the units to each other through Coulombic inter­actions. Although the hydrogen atoms of the water mol­ecules and hydroxide groups could not be located, the range of O⋯O distances between the cationic complex and the lattice water mol­ecules suggest the formation of medium-strength hydrogen bonds (Table 1 ▶). These inter­actions lead to the formation of a three-dimensional network in the structure (Fig. 3 ▶).


Crystal structure of [Y6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O.

Le Natur F, Calvez G, Guillou O, Daiguebonne C, Bernot K - Acta Crystallogr Sect E Struct Rep Online (2014)

The crystal structure of [Y6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O in projections along [100], [010] and [001], respectively, from left to right. Y atoms are green, O atoms are red and I atoms are yellow.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4257455&req=5

fig3: The crystal structure of [Y6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O in projections along [100], [010] and [001], respectively, from left to right. Y atoms are green, O atoms are red and I atoms are yellow.
Mentions: The hexa­nuclear [Y6(μ6-O)(μ3-OH)8(H2O)24]8+ units are arranged in a body-centred fashion in the crystal structure. Each of these units is surrounded by twelve iodide anions, connecting the units to each other through Coulombic inter­actions. Although the hydrogen atoms of the water mol­ecules and hydroxide groups could not be located, the range of O⋯O distances between the cationic complex and the lattice water mol­ecules suggest the formation of medium-strength hydrogen bonds (Table 1 ▶). These inter­actions lead to the formation of a three-dimensional network in the structure (Fig. 3 ▶).

Bottom Line: In the hexa-nuclear entity, the Y(3+) cations are coordinated by the central μ6-O atom, the O atoms of four μ3-OH and of four water mol-ecules.The crystal packing is quite similar to that of the ortho-rhom-bic [Ln 6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O structures with Ln = La-Nd, Eu-Tb, Dy, except that the title compound exhibits a slight monoclinic distortion.The proximity of the cationic complexes and the lattice water mol-ecules leads to the formation of a three-dimensional hydrogen-bonded network of medium strength.

View Article: PubMed Central - HTML - PubMed

Affiliation: INSA, UMR 6226, Institut des Sciences Chimiques de Rennes, 35 708 Rennes, France.

ABSTRACT
The crystal structure of the title compound {systematic name: octa-μ3-hydroxido-μ6-oxido-hexa-kis-[tetra-aqua-yttrium(III)] octa-iodide octa-hydrate}, is characterized by the presence of the centrosymmetric mol-ecular entity [Y6(μ6-O)(μ3-OH)8(H2O)24](8+), in which the six Y(3+) cations are arranged octa-hedrally around a μ6-O atom at the centre of the cationic complex. Each of the eight faces of the Y6 octa-hedron is capped by an μ3-OH group in the form of a distorted cube. In the hexa-nuclear entity, the Y(3+) cations are coordinated by the central μ6-O atom, the O atoms of four μ3-OH and of four water mol-ecules. The resulting coordination sphere of the metal ions is a capped square-anti-prism. The crystal packing is quite similar to that of the ortho-rhom-bic [Ln 6(μ6-O)(μ3-OH)8(H2O)24]I8·8H2O structures with Ln = La-Nd, Eu-Tb, Dy, except that the title compound exhibits a slight monoclinic distortion. The proximity of the cationic complexes and the lattice water mol-ecules leads to the formation of a three-dimensional hydrogen-bonded network of medium strength.

No MeSH data available.


Related in: MedlinePlus