Abstract
The compounds Ba/sub 2/SEsub(0.67)WO/sub 6/ with SE = Gd-Lu are polymorphic. Above 1200/sup 0/C the instable cubic modification (ordered perovskite with 4 formula units Ba/sub 2/SEsub(0.67)vacantsub(0.33)WO/sub 6/ per cell) transforms irreversibly into a hexagonal modification with completely filled cationic lattice. For Ba/sub 2/Eusub(0.67)WO/sub 6/ the transformation is incomplete. With SE = Nd and Sm only the cubic modification is formed.
Schittenhelm, H J;
Kemmler-Sack, S
[1]
- Tuebingen Univ. (F.R. Germany). Inst. fuer Anorganische Chemie
Citation Formats
Schittenhelm, H J, and Kemmler-Sack, S.
Polymorphism of tungsten perovskite compounds Ba/sub 2/SEsub(0. 67)WO/sub 6/.
Germany: N. p.,
1976.
Web.
doi:10.1002/zaac.19764250212.
Schittenhelm, H J, & Kemmler-Sack, S.
Polymorphism of tungsten perovskite compounds Ba/sub 2/SEsub(0. 67)WO/sub 6/.
Germany.
https://doi.org/10.1002/zaac.19764250212
Schittenhelm, H J, and Kemmler-Sack, S.
1976.
"Polymorphism of tungsten perovskite compounds Ba/sub 2/SEsub(0. 67)WO/sub 6/."
Germany.
https://doi.org/10.1002/zaac.19764250212.
@misc{etde_7232193,
title = {Polymorphism of tungsten perovskite compounds Ba/sub 2/SEsub(0. 67)WO/sub 6/}
author = {Schittenhelm, H J, and Kemmler-Sack, S}
abstractNote = {The compounds Ba/sub 2/SEsub(0.67)WO/sub 6/ with SE = Gd-Lu are polymorphic. Above 1200/sup 0/C the instable cubic modification (ordered perovskite with 4 formula units Ba/sub 2/SEsub(0.67)vacantsub(0.33)WO/sub 6/ per cell) transforms irreversibly into a hexagonal modification with completely filled cationic lattice. For Ba/sub 2/Eusub(0.67)WO/sub 6/ the transformation is incomplete. With SE = Nd and Sm only the cubic modification is formed.}
doi = {10.1002/zaac.19764250212}
journal = []
volume = {425:2}
journal type = {AC}
place = {Germany}
year = {1976}
month = {Sep}
}
title = {Polymorphism of tungsten perovskite compounds Ba/sub 2/SEsub(0. 67)WO/sub 6/}
author = {Schittenhelm, H J, and Kemmler-Sack, S}
abstractNote = {The compounds Ba/sub 2/SEsub(0.67)WO/sub 6/ with SE = Gd-Lu are polymorphic. Above 1200/sup 0/C the instable cubic modification (ordered perovskite with 4 formula units Ba/sub 2/SEsub(0.67)vacantsub(0.33)WO/sub 6/ per cell) transforms irreversibly into a hexagonal modification with completely filled cationic lattice. For Ba/sub 2/Eusub(0.67)WO/sub 6/ the transformation is incomplete. With SE = Nd and Sm only the cubic modification is formed.}
doi = {10.1002/zaac.19764250212}
journal = []
volume = {425:2}
journal type = {AC}
place = {Germany}
year = {1976}
month = {Sep}
}