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Title: Materials Data on Er4C7 by Materials Project

Abstract

Er4C7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded in a 9-coordinate geometry to nine C+1.71- atoms. There are a spread of Er–C bond distances ranging from 2.42–2.83 Å. In the second Er3+ site, Er3+ is bonded to seven C+1.71- atoms to form distorted ErC7 octahedra that share corners with two equivalent ErC7 octahedra, a cornercorner with one CEr4C trigonal bipyramid, and edges with five equivalent ErC7 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Er–C bond distances ranging from 2.47–2.98 Å. There are four inequivalent C+1.71- sites. In the first C+1.71- site, C+1.71- is bonded in a 5-coordinate geometry to five Er3+ and one C+1.71- atom. The C–C bond length is 1.33 Å. In the second C+1.71- site, C+1.71- is bonded to four Er3+ and one C+1.71- atom to form distorted CEr4C trigonal bipyramids that share a cornercorner with one ErC7 octahedra, a cornercorner with one CEr6 octahedra, corners with six equivalent CEr4C trigonal bipyramids, and edges with two equivalent CEr6 octahedra. The corner-sharing octahedra tilt angles range from 32–61°. The C–C bond length is 1.32 Å.more » In the third C+1.71- site, C+1.71- is bonded in a 6-coordinate geometry to four Er3+ and two C+1.71- atoms. In the fourth C+1.71- site, C+1.71- is bonded to six Er3+ atoms to form CEr6 octahedra that share corners with two equivalent CEr4C trigonal bipyramids, edges with two equivalent CEr6 octahedra, and edges with four equivalent CEr4C trigonal bipyramids.« less

Authors:
Publication Date:
Other Number(s):
mp-1212833
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; Er4C7; C-Er
OSTI Identifier:
1684462
DOI:
https://doi.org/10.17188/1684462

Citation Formats

The Materials Project. Materials Data on Er4C7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1684462.
The Materials Project. Materials Data on Er4C7 by Materials Project. United States. doi:https://doi.org/10.17188/1684462
The Materials Project. 2020. "Materials Data on Er4C7 by Materials Project". United States. doi:https://doi.org/10.17188/1684462. https://www.osti.gov/servlets/purl/1684462. Pub date:Thu Apr 30 00:00:00 EDT 2020
@article{osti_1684462,
title = {Materials Data on Er4C7 by Materials Project},
author = {The Materials Project},
abstractNote = {Er4C7 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded in a 9-coordinate geometry to nine C+1.71- atoms. There are a spread of Er–C bond distances ranging from 2.42–2.83 Å. In the second Er3+ site, Er3+ is bonded to seven C+1.71- atoms to form distorted ErC7 octahedra that share corners with two equivalent ErC7 octahedra, a cornercorner with one CEr4C trigonal bipyramid, and edges with five equivalent ErC7 octahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Er–C bond distances ranging from 2.47–2.98 Å. There are four inequivalent C+1.71- sites. In the first C+1.71- site, C+1.71- is bonded in a 5-coordinate geometry to five Er3+ and one C+1.71- atom. The C–C bond length is 1.33 Å. In the second C+1.71- site, C+1.71- is bonded to four Er3+ and one C+1.71- atom to form distorted CEr4C trigonal bipyramids that share a cornercorner with one ErC7 octahedra, a cornercorner with one CEr6 octahedra, corners with six equivalent CEr4C trigonal bipyramids, and edges with two equivalent CEr6 octahedra. The corner-sharing octahedra tilt angles range from 32–61°. The C–C bond length is 1.32 Å. In the third C+1.71- site, C+1.71- is bonded in a 6-coordinate geometry to four Er3+ and two C+1.71- atoms. In the fourth C+1.71- site, C+1.71- is bonded to six Er3+ atoms to form CEr6 octahedra that share corners with two equivalent CEr4C trigonal bipyramids, edges with two equivalent CEr6 octahedra, and edges with four equivalent CEr4C trigonal bipyramids.},
doi = {10.17188/1684462},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {4}
}