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The defect scheelite-type lanthanum(III) ortho-oxidomolybdate(VI) La(0.667)[MoO(4)].

Schustereit T, Schleid T, Hartenbach I - Acta Crystallogr Sect E Struct Rep Online (2013)

Bottom Line: In scheelite-type La(0.667)[MoO(4)], one crystallographically unique position with site symmetry -4.. and an occupancy of 2/3 is found for the La(3+) cation.The structure also contains one [MoO(4)](2-) anion (site symmetry -4..), which is surrounded by eight vertex-attached La(3+) cations.The polyhedra around the La(3+) cations are inter-connected via common edges, building up a three-dimensional network, in the tetra-hedral voids of which the Mo(6+) cations reside.

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Affiliation: Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.

ABSTRACT
In scheelite-type La(0.667)[MoO(4)], one crystallographically unique position with site symmetry -4.. and an occupancy of 2/3 is found for the La(3+) cation. The cation is surrounded by eight O atoms in the shape of a trigonal dodeca-hedron. The structure also contains one [MoO(4)](2-) anion (site symmetry -4..), which is surrounded by eight vertex-attached La(3+) cations. The polyhedra around the La(3+) cations are inter-connected via common edges, building up a three-dimensional network, in the tetra-hedral voids of which the Mo(6+) cations reside.

No MeSH data available.


Trigonal dodecahedral oxygen environment of the La3+ cation in defect scheelite-type La0.667[MoO4]; ellipsoids are drawn at the 80 % probability level. [Symmetry codes: (i) x, y, z; (ii) –x+1/2, –y, z+1/2; (iii) –y+3/4, x+1/4, z+1/4; (iv) y+3/4, –x+3/4, z+3/4; (v) –x, –y, –z; (vi) x+1/2, y, –z+1/2; (vii) y+1/4, –x+3/4, –z+3/4; (viii) –y+1/4, x+1/4, –z+1/4].
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Fap1: Trigonal dodecahedral oxygen environment of the La3+ cation in defect scheelite-type La0.667[MoO4]; ellipsoids are drawn at the 80 % probability level. [Symmetry codes: (i) x, y, z; (ii) –x+1/2, –y, z+1/2; (iii) –y+3/4, x+1/4, z+1/4; (iv) y+3/4, –x+3/4, z+3/4; (v) –x, –y, –z; (vi) x+1/2, y, –z+1/2; (vii) y+1/4, –x+3/4, –z+3/4; (viii) –y+1/4, x+1/4, –z+1/4].


The defect scheelite-type lanthanum(III) ortho-oxidomolybdate(VI) La(0.667)[MoO(4)].

Schustereit T, Schleid T, Hartenbach I - Acta Crystallogr Sect E Struct Rep Online (2013)

Trigonal dodecahedral oxygen environment of the La3+ cation in defect scheelite-type La0.667[MoO4]; ellipsoids are drawn at the 80 % probability level. [Symmetry codes: (i) x, y, z; (ii) –x+1/2, –y, z+1/2; (iii) –y+3/4, x+1/4, z+1/4; (iv) y+3/4, –x+3/4, z+3/4; (v) –x, –y, –z; (vi) x+1/2, y, –z+1/2; (vii) y+1/4, –x+3/4, –z+3/4; (viii) –y+1/4, x+1/4, –z+1/4].
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3569171&req=5

Fap1: Trigonal dodecahedral oxygen environment of the La3+ cation in defect scheelite-type La0.667[MoO4]; ellipsoids are drawn at the 80 % probability level. [Symmetry codes: (i) x, y, z; (ii) –x+1/2, –y, z+1/2; (iii) –y+3/4, x+1/4, z+1/4; (iv) y+3/4, –x+3/4, z+3/4; (v) –x, –y, –z; (vi) x+1/2, y, –z+1/2; (vii) y+1/4, –x+3/4, –z+3/4; (viii) –y+1/4, x+1/4, –z+1/4].
Bottom Line: In scheelite-type La(0.667)[MoO(4)], one crystallographically unique position with site symmetry -4.. and an occupancy of 2/3 is found for the La(3+) cation.The structure also contains one [MoO(4)](2-) anion (site symmetry -4..), which is surrounded by eight vertex-attached La(3+) cations.The polyhedra around the La(3+) cations are inter-connected via common edges, building up a three-dimensional network, in the tetra-hedral voids of which the Mo(6+) cations reside.

View Article: PubMed Central - HTML - PubMed

Affiliation: Institut für Anorganische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569 Stuttgart, Germany.

ABSTRACT
In scheelite-type La(0.667)[MoO(4)], one crystallographically unique position with site symmetry -4.. and an occupancy of 2/3 is found for the La(3+) cation. The cation is surrounded by eight O atoms in the shape of a trigonal dodeca-hedron. The structure also contains one [MoO(4)](2-) anion (site symmetry -4..), which is surrounded by eight vertex-attached La(3+) cations. The polyhedra around the La(3+) cations are inter-connected via common edges, building up a three-dimensional network, in the tetra-hedral voids of which the Mo(6+) cations reside.

No MeSH data available.