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Title: Materials Data on Hf2Be17 by Materials Project

Abstract

Be17Hf2 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are four inequivalent Be sites. In the first Be site, Be is bonded in a 2-coordinate geometry to thirteen Be and one Hf atom. There are a spread of Be–Be bond distances ranging from 2.09–2.39 Å. The Be–Hf bond length is 2.59 Å. In the second Be site, Be is bonded to ten Be and two equivalent Hf atoms to form BeHf2Be10 cuboctahedra that share corners with twenty-two BeHf2Be10 cuboctahedra, edges with ten BeHf3Be9 cuboctahedra, and faces with eighteen BeHf2Be10 cuboctahedra. There are four shorter (2.14 Å) and four longer (2.17 Å) Be–Be bond lengths. Both Be–Hf bond lengths are 2.82 Å. In the third Be site, Be is bonded to ten Be and two Hf atoms to form a mixture of distorted face, edge, and corner-sharing BeHf2Be10 cuboctahedra. There are a spread of Be–Be bond distances ranging from 2.13–2.34 Å. There are one shorter (2.67 Å) and one longer (2.69 Å) Be–Hf bond lengths. In the fourth Be site, Be is bonded to nine Be and three Hf atoms to form a mixture of distorted face, edge, and corner-sharing BeHf3Be9 cuboctahedra. Both Be–Be bond lengths aremore » 2.14 Å. There are a spread of Be–Hf bond distances ranging from 2.74–2.87 Å. There are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 12-coordinate geometry to eighteen Be atoms. In the second Hf site, Hf is bonded in a 8-coordinate geometry to twenty Be atoms.« less

Publication Date:
Other Number(s):
mp-1198059
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
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)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; Hf2Be17; Be-Hf
OSTI Identifier:
1744762
DOI:
https://doi.org/10.17188/1744762

Citation Formats

The Materials Project. Materials Data on Hf2Be17 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1744762.
The Materials Project. Materials Data on Hf2Be17 by Materials Project. United States. doi:https://doi.org/10.17188/1744762
The Materials Project. 2020. "Materials Data on Hf2Be17 by Materials Project". United States. doi:https://doi.org/10.17188/1744762. https://www.osti.gov/servlets/purl/1744762. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1744762,
title = {Materials Data on Hf2Be17 by Materials Project},
author = {The Materials Project},
abstractNote = {Be17Hf2 crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. there are four inequivalent Be sites. In the first Be site, Be is bonded in a 2-coordinate geometry to thirteen Be and one Hf atom. There are a spread of Be–Be bond distances ranging from 2.09–2.39 Å. The Be–Hf bond length is 2.59 Å. In the second Be site, Be is bonded to ten Be and two equivalent Hf atoms to form BeHf2Be10 cuboctahedra that share corners with twenty-two BeHf2Be10 cuboctahedra, edges with ten BeHf3Be9 cuboctahedra, and faces with eighteen BeHf2Be10 cuboctahedra. There are four shorter (2.14 Å) and four longer (2.17 Å) Be–Be bond lengths. Both Be–Hf bond lengths are 2.82 Å. In the third Be site, Be is bonded to ten Be and two Hf atoms to form a mixture of distorted face, edge, and corner-sharing BeHf2Be10 cuboctahedra. There are a spread of Be–Be bond distances ranging from 2.13–2.34 Å. There are one shorter (2.67 Å) and one longer (2.69 Å) Be–Hf bond lengths. In the fourth Be site, Be is bonded to nine Be and three Hf atoms to form a mixture of distorted face, edge, and corner-sharing BeHf3Be9 cuboctahedra. Both Be–Be bond lengths are 2.14 Å. There are a spread of Be–Hf bond distances ranging from 2.74–2.87 Å. There are two inequivalent Hf sites. In the first Hf site, Hf is bonded in a 12-coordinate geometry to eighteen Be atoms. In the second Hf site, Hf is bonded in a 8-coordinate geometry to twenty Be atoms.},
doi = {10.17188/1744762},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}