Journal
ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY
Volume 66, Issue -, Pages I29-I32Publisher
INT UNION CRYSTALLOGRAPHY
DOI: 10.1107/S0108270110002842
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- Austrian Science Foundation (FWF) [P15220-N06]
- Austrian Science Fund (FWF) [P15220] Funding Source: Austrian Science Fund (FWF)
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The title compound, dibarium digadolinium(III) tetrasilicate, crystallized from a molybdate-based flux. It represents a new structure type and contains finite zigzag-shaped C-2-symmetric Si4O13 chains and Gd2O12 dimers built of edge-sharing GdO7 polyhedra. The [9+1]-coordinated Ba atoms are located in voids in the atomic arrangement. All atoms are in general positions except for one O atom, which lies on a twofold axis. The structure is compared with those of the few other known tetrasilicates.
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