Abstract
The structure of Ba3W2O9 has been determined from powder x-ray diffraction data and found to be the same as in Cs3Tl2Cl9. Two-thirds of the octahedral sites between hexagonal closest-packed BaO3 layers (ABAB...) are filled by the tungsten atoms. The enneaoxo W2O9 6- group represents the first crystal chemistry example of tungsten (VI) in a face-sharing arrangement. Infrared and Raman data are consistent with overall 32 (D3) site symmetry. Crystallographic and spectroscopic evidence supports a covalent bonding model with oxygen pπ → metal dπ stabilization of this tungsten (VI) phase.
| Original language | English |
|---|---|
| Pages (from-to) | 339-345 |
| Number of pages | 7 |
| Journal | Materials Research Bulletin |
| Volume | 15 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1980 |
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ASJC Scopus subject areas
- Ceramics and Composites
- Materials Chemistry
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The structure of Ba3W2O9; an example of face-shared octahedra with tungsten (VI). / Poeppelmeier, Kenneth R; Jacobson, A. J.; Longo, J. M.
In: Materials Research Bulletin, Vol. 15, No. 3, 1980, p. 339-345.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - The structure of Ba3W2O9; an example of face-shared octahedra with tungsten (VI)
AU - Poeppelmeier, Kenneth R
AU - Jacobson, A. J.
AU - Longo, J. M.
PY - 1980
Y1 - 1980
N2 - The structure of Ba3W2O9 has been determined from powder x-ray diffraction data and found to be the same as in Cs3Tl2Cl9. Two-thirds of the octahedral sites between hexagonal closest-packed BaO3 layers (ABAB...) are filled by the tungsten atoms. The enneaoxo W2O9 6- group represents the first crystal chemistry example of tungsten (VI) in a face-sharing arrangement. Infrared and Raman data are consistent with overall 32 (D3) site symmetry. Crystallographic and spectroscopic evidence supports a covalent bonding model with oxygen pπ → metal dπ stabilization of this tungsten (VI) phase.
AB - The structure of Ba3W2O9 has been determined from powder x-ray diffraction data and found to be the same as in Cs3Tl2Cl9. Two-thirds of the octahedral sites between hexagonal closest-packed BaO3 layers (ABAB...) are filled by the tungsten atoms. The enneaoxo W2O9 6- group represents the first crystal chemistry example of tungsten (VI) in a face-sharing arrangement. Infrared and Raman data are consistent with overall 32 (D3) site symmetry. Crystallographic and spectroscopic evidence supports a covalent bonding model with oxygen pπ → metal dπ stabilization of this tungsten (VI) phase.
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UR - http://www.scopus.com/inward/citedby.url?scp=0018997665&partnerID=8YFLogxK
U2 - 10.1016/0025-5408(80)90177-4
DO - 10.1016/0025-5408(80)90177-4
M3 - Article
VL - 15
SP - 339
EP - 345
JO - Materials Research Bulletin
JF - Materials Research Bulletin
SN - 0025-5408
IS - 3
ER -