10.17188/1313861
None Available
Materials Data on SmTa3 by Materials Project
LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
2017
Specialized Mix
36 MATERIALS SCIENCE
crystal structure
SmTa3
Sm-Ta
The Materials Project
2017
en
SmTa3 is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Sm is bonded in a distorted body-centered cubic geometry to fourteen Ta atoms. There are eight shorter (2.99 Å) and six longer (3.46 Å) Sm–Ta bond lengths. There are two inequivalent Ta sites. In the first Ta site, Ta is bonded in a distorted body-centered cubic geometry to four equivalent Sm and four equivalent Ta atoms. All Ta–Ta bond lengths are 2.99 Å. In the second Ta site, Ta is bonded in a 8-coordinate geometry to six equivalent Sm and eight equivalent Ta atoms.