U.S. Department of EnergyOffice of Scientific and Technical Information
Materials Data on Ho2AlGe3 by Materials Project
Abstract
Ho2AlGe3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 7-coordinate geometry to two equivalent Al and nine Ge atoms. Both Ho–Al bond lengths are 3.32 Å. There are a spread of Ho–Ge bond distances ranging from 2.97–3.33 Å. In the second Ho site, Ho is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Ho–Ge bond distances ranging from 2.94–3.05 Å. Al is bonded to two equivalent Ho and four Ge atoms to form distorted AlHo2Ge4 tetrahedra that share corners with two equivalent GeHo4Al3 pentagonal bipyramids and edges with four equivalent AlHo2Ge4 tetrahedra. There are a spread of Al–Ge bond distances ranging from 2.55–2.70 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded to four Ho and three equivalent Al atoms to form distorted GeHo4Al3 pentagonal bipyramids that share corners with two equivalent AlHo2Ge4 tetrahedra and edges with six equivalent GeHo4Al3 pentagonal bipyramids. In the second Ge site, Ge is bonded in a 4-coordinate geometry to six Ho and two equivalent Ge atoms. There are one shorter (2.58 Å) andmore »
- Authors:
- Publication Date:
- Other Number(s):
- mp-1212392
- 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; Ho2AlGe3; Al-Ge-Ho
- OSTI Identifier:
- 1676217
- DOI:
- https://doi.org/10.17188/1676217
Citation Formats
The Materials Project. Materials Data on Ho2AlGe3 by Materials Project. United States: N. p., 2020.
Web. doi:10.17188/1676217.
The Materials Project. Materials Data on Ho2AlGe3 by Materials Project. United States. doi:https://doi.org/10.17188/1676217
The Materials Project. 2020.
"Materials Data on Ho2AlGe3 by Materials Project". United States. doi:https://doi.org/10.17188/1676217. https://www.osti.gov/servlets/purl/1676217. Pub date:Fri May 01 00:00:00 EDT 2020
@article{osti_1676217,
title = {Materials Data on Ho2AlGe3 by Materials Project},
author = {The Materials Project},
abstractNote = {Ho2AlGe3 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are two inequivalent Ho sites. In the first Ho site, Ho is bonded in a 7-coordinate geometry to two equivalent Al and nine Ge atoms. Both Ho–Al bond lengths are 3.32 Å. There are a spread of Ho–Ge bond distances ranging from 2.97–3.33 Å. In the second Ho site, Ho is bonded in a 7-coordinate geometry to seven Ge atoms. There are a spread of Ho–Ge bond distances ranging from 2.94–3.05 Å. Al is bonded to two equivalent Ho and four Ge atoms to form distorted AlHo2Ge4 tetrahedra that share corners with two equivalent GeHo4Al3 pentagonal bipyramids and edges with four equivalent AlHo2Ge4 tetrahedra. There are a spread of Al–Ge bond distances ranging from 2.55–2.70 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded to four Ho and three equivalent Al atoms to form distorted GeHo4Al3 pentagonal bipyramids that share corners with two equivalent AlHo2Ge4 tetrahedra and edges with six equivalent GeHo4Al3 pentagonal bipyramids. In the second Ge site, Ge is bonded in a 4-coordinate geometry to six Ho and two equivalent Ge atoms. There are one shorter (2.58 Å) and one longer (2.67 Å) Ge–Ge bond lengths. In the third Ge site, Ge is bonded in a 9-coordinate geometry to six Ho, one Al, and two equivalent Ge atoms.},
doi = {10.17188/1676217},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}