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Title: Materials Data on Sm3(Co2Sn)4 by Materials Project

Abstract

Sm3Co8Sn4 is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to eight Co and six Sn atoms. There are a spread of Sm–Co bond distances ranging from 3.11–3.59 Å. There are a spread of Sm–Sn bond distances ranging from 3.20–3.28 Å. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 10-coordinate geometry to six equivalent Sm and four Sn atoms. There are three shorter (2.55 Å) and one longer (2.66 Å) Co–Sn bond lengths. In the second Co site, Co is bonded to two equivalent Sm, seven Co, and three equivalent Sn atoms to form distorted CoSm2Co7Sn3 cuboctahedra that share corners with four equivalent CoSm2Co7Sn3 cuboctahedra, corners with five equivalent SnSm4Co8 cuboctahedra, faces with six equivalent SnSm4Co8 cuboctahedra, and faces with eight CoSm2Co7Sn3 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.38–2.57 Å. There are one shorter (2.67 Å) and two longer (2.68 Å) Co–Sn bond lengths. In the third Co site, Co is bonded in a 12-coordinate geometry to four equivalent Sm, four Co, and four Sn atoms. The Co–Co bond length is 2.46 Å.more » There are a spread of Co–Sn bond distances ranging from 2.72–2.85 Å. In the fourth Co site, Co is bonded to nine Co and three equivalent Sn atoms to form CoCo9Sn3 cuboctahedra that share corners with three equivalent SnSm4Co8 cuboctahedra, faces with six equivalent SnSm4Co8 cuboctahedra, and faces with eight CoSm2Co7Sn3 cuboctahedra. All Co–Sn bond lengths are 2.69 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to six equivalent Sm and four Co atoms. In the second Sn site, Sn is bonded to four equivalent Sm and eight Co atoms to form distorted SnSm4Co8 cuboctahedra that share corners with four equivalent SnSm4Co8 cuboctahedra, corners with six CoSm2Co7Sn3 cuboctahedra, faces with eight CoSm2Co7Sn3 cuboctahedra, and faces with eight equivalent SnSm4Co8 cuboctahedra.« less

Publication Date:
Other Number(s):
mp-1209183
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; Sm3(Co2Sn)4; Co-Sm-Sn
OSTI Identifier:
1697962
DOI:
10.17188/1697962

Citation Formats

The Materials Project. Materials Data on Sm3(Co2Sn)4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1697962.
The Materials Project. Materials Data on Sm3(Co2Sn)4 by Materials Project. United States. doi:10.17188/1697962.
The Materials Project. 2020. "Materials Data on Sm3(Co2Sn)4 by Materials Project". United States. doi:10.17188/1697962. https://www.osti.gov/servlets/purl/1697962. Pub date:Thu Jun 04 00:00:00 EDT 2020
@article{osti_1697962,
title = {Materials Data on Sm3(Co2Sn)4 by Materials Project},
author = {The Materials Project},
abstractNote = {Sm3Co8Sn4 is Hexagonal Laves-derived structured and crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to eight Co and six Sn atoms. There are a spread of Sm–Co bond distances ranging from 3.11–3.59 Å. There are a spread of Sm–Sn bond distances ranging from 3.20–3.28 Å. There are four inequivalent Co sites. In the first Co site, Co is bonded in a 10-coordinate geometry to six equivalent Sm and four Sn atoms. There are three shorter (2.55 Å) and one longer (2.66 Å) Co–Sn bond lengths. In the second Co site, Co is bonded to two equivalent Sm, seven Co, and three equivalent Sn atoms to form distorted CoSm2Co7Sn3 cuboctahedra that share corners with four equivalent CoSm2Co7Sn3 cuboctahedra, corners with five equivalent SnSm4Co8 cuboctahedra, faces with six equivalent SnSm4Co8 cuboctahedra, and faces with eight CoSm2Co7Sn3 cuboctahedra. There are a spread of Co–Co bond distances ranging from 2.38–2.57 Å. There are one shorter (2.67 Å) and two longer (2.68 Å) Co–Sn bond lengths. In the third Co site, Co is bonded in a 12-coordinate geometry to four equivalent Sm, four Co, and four Sn atoms. The Co–Co bond length is 2.46 Å. There are a spread of Co–Sn bond distances ranging from 2.72–2.85 Å. In the fourth Co site, Co is bonded to nine Co and three equivalent Sn atoms to form CoCo9Sn3 cuboctahedra that share corners with three equivalent SnSm4Co8 cuboctahedra, faces with six equivalent SnSm4Co8 cuboctahedra, and faces with eight CoSm2Co7Sn3 cuboctahedra. All Co–Sn bond lengths are 2.69 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 10-coordinate geometry to six equivalent Sm and four Co atoms. In the second Sn site, Sn is bonded to four equivalent Sm and eight Co atoms to form distorted SnSm4Co8 cuboctahedra that share corners with four equivalent SnSm4Co8 cuboctahedra, corners with six CoSm2Co7Sn3 cuboctahedra, faces with eight CoSm2Co7Sn3 cuboctahedra, and faces with eight equivalent SnSm4Co8 cuboctahedra.},
doi = {10.17188/1697962},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {6}
}

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