DOE Data Explorer title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Materials Data on Tm6Ta4Al43 by Materials Project

Abstract

Tm6Ta4Al43 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. Tm is bonded in a 6-coordinate geometry to one Tm, one Ta, and fifteen Al atoms. The Tm–Tm bond length is 3.47 Å. The Tm–Ta bond length is 3.47 Å. There are a spread of Tm–Al bond distances ranging from 3.05–3.46 Å. There are two inequivalent Ta sites. In the first Ta site, Ta is bonded to twelve Al atoms to form TaAl12 cuboctahedra that share edges with six equivalent AlTa2Al10 cuboctahedra. There are six shorter (2.69 Å) and six longer (2.90 Å) Ta–Al bond lengths. In the second Ta site, Ta is bonded in a 10-coordinate geometry to two equivalent Tm and ten Al atoms. There are a spread of Ta–Al bond distances ranging from 2.65–2.75 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 12-coordinate geometry to one Tm, two Ta, and nine Al atoms. There are a spread of Al–Al bond distances ranging from 2.76–3.07 Å. In the second Al site, Al is bonded in a 12-coordinate geometry to two equivalent Tm, one Ta, and nine Al atoms. There are a spread of Al–Al bond distances rangingmore » from 2.74–3.05 Å. In the third Al site, Al is bonded in a 12-coordinate geometry to four equivalent Tm and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.78–3.06 Å. In the fourth Al site, Al is bonded in a 12-coordinate geometry to two equivalent Tm, one Ta, and nine Al atoms. There are a spread of Al–Al bond distances ranging from 2.73–3.07 Å. In the fifth Al site, Al is bonded in a 12-coordinate geometry to two equivalent Tm, one Ta, and seven Al atoms. There are two shorter (2.82 Å) and one longer (2.88 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded to two equivalent Ta and ten Al atoms to form distorted AlTa2Al10 cuboctahedra that share corners with four equivalent AlTm3Al9 cuboctahedra, edges with two equivalent TaAl12 cuboctahedra, and faces with two equivalent AlTa2Al10 cuboctahedra. Both Al–Al bond lengths are 2.83 Å. In the seventh Al site, Al is bonded to three equivalent Tm and nine Al atoms to form AlTm3Al9 cuboctahedra that share corners with six AlTa2Al10 cuboctahedra and faces with two equivalent AlTm3Al9 cuboctahedra.« less

Authors:
Publication Date:
Other Number(s):
mp-1208183
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). LBNL Materials Project
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Collaborations:
MIT; UC Berkeley; Duke; U Louvain
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Tm6Ta4Al43; Al-Ta-Tm
OSTI Identifier:
1738216
DOI:
https://doi.org/10.17188/1738216

Citation Formats

The Materials Project. Materials Data on Tm6Ta4Al43 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1738216.
The Materials Project. Materials Data on Tm6Ta4Al43 by Materials Project. United States. doi:https://doi.org/10.17188/1738216
The Materials Project. 2020. "Materials Data on Tm6Ta4Al43 by Materials Project". United States. doi:https://doi.org/10.17188/1738216. https://www.osti.gov/servlets/purl/1738216. Pub date:Wed Apr 29 00:00:00 EDT 2020
@article{osti_1738216,
title = {Materials Data on Tm6Ta4Al43 by Materials Project},
author = {The Materials Project},
abstractNote = {Tm6Ta4Al43 crystallizes in the hexagonal P6_3/mcm space group. The structure is three-dimensional. Tm is bonded in a 6-coordinate geometry to one Tm, one Ta, and fifteen Al atoms. The Tm–Tm bond length is 3.47 Å. The Tm–Ta bond length is 3.47 Å. There are a spread of Tm–Al bond distances ranging from 3.05–3.46 Å. There are two inequivalent Ta sites. In the first Ta site, Ta is bonded to twelve Al atoms to form TaAl12 cuboctahedra that share edges with six equivalent AlTa2Al10 cuboctahedra. There are six shorter (2.69 Å) and six longer (2.90 Å) Ta–Al bond lengths. In the second Ta site, Ta is bonded in a 10-coordinate geometry to two equivalent Tm and ten Al atoms. There are a spread of Ta–Al bond distances ranging from 2.65–2.75 Å. There are seven inequivalent Al sites. In the first Al site, Al is bonded in a 12-coordinate geometry to one Tm, two Ta, and nine Al atoms. There are a spread of Al–Al bond distances ranging from 2.76–3.07 Å. In the second Al site, Al is bonded in a 12-coordinate geometry to two equivalent Tm, one Ta, and nine Al atoms. There are a spread of Al–Al bond distances ranging from 2.74–3.05 Å. In the third Al site, Al is bonded in a 12-coordinate geometry to four equivalent Tm and eight Al atoms. There are a spread of Al–Al bond distances ranging from 2.78–3.06 Å. In the fourth Al site, Al is bonded in a 12-coordinate geometry to two equivalent Tm, one Ta, and nine Al atoms. There are a spread of Al–Al bond distances ranging from 2.73–3.07 Å. In the fifth Al site, Al is bonded in a 12-coordinate geometry to two equivalent Tm, one Ta, and seven Al atoms. There are two shorter (2.82 Å) and one longer (2.88 Å) Al–Al bond lengths. In the sixth Al site, Al is bonded to two equivalent Ta and ten Al atoms to form distorted AlTa2Al10 cuboctahedra that share corners with four equivalent AlTm3Al9 cuboctahedra, edges with two equivalent TaAl12 cuboctahedra, and faces with two equivalent AlTa2Al10 cuboctahedra. Both Al–Al bond lengths are 2.83 Å. In the seventh Al site, Al is bonded to three equivalent Tm and nine Al atoms to form AlTm3Al9 cuboctahedra that share corners with six AlTa2Al10 cuboctahedra and faces with two equivalent AlTm3Al9 cuboctahedra.},
doi = {10.17188/1738216},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}