Ba2Gd2(Si4O13): a silicate with finite Si4O13 chains
- Author(s)
- Maria Wierzbicka-Wieczorek, Uwe Kolitsch, Ekkehart Tillmanns
- Abstract
The title compound, dibarium digadolinium(III) tetrasilicate, crystallized from a molybdate-based flux. It represents a new structure type and contains finite zigzag-shaped C2-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.
- Organisation(s)
- Department of Mineralogy and Crystallography
- Journal
- Acta Crystallographica. Section C: Crystal Structure Communications
- Volume
- 66
- Pages
- 29-32
- No. of pages
- 4
- ISSN
- 0108-2701
- DOI
- https://doi.org/10.1107/s0108270110002842
- Publication date
- 03-2010
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105113 Crystallography
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/621e832d-02c7-45a0-bde1-6d22e967d67b