Materials Data on Sm2Fe17C2 by Materials Project

doi:10.17188/1680269

Title: Materials Data on Sm2Fe17C2 by Materials Project

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Abstract

Sm2Fe17C2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Sm is bonded in a distorted bent 120 degrees geometry to nine Fe and two equivalent C atoms. There are a spread of Sm–Fe bond distances ranging from 3.06–3.38 Å. Both Sm–C bond lengths are 2.54 Å. There are seven inequivalent Fe sites. In the first Fe site, Fe is bonded to three equivalent Sm and nine Fe atoms to form distorted FeSm3Fe9 cuboctahedra that share corners with eleven FeSm3Fe9 cuboctahedra, corners with four equivalent CSm2Fe4 octahedra, edges with four FeSm3Fe9 cuboctahedra, faces with eight FeSm3Fe9 cuboctahedra, and faces with two equivalent CSm2Fe4 octahedra. The corner-sharing octahedra tilt angles range from 63–69°. There are a spread of Fe–Fe bond distances ranging from 2.48–2.67 Å. In the second Fe site, Fe is bonded in a single-bond geometry to five Fe and one C atom. There are a spread of Fe–Fe bond distances ranging from 2.47–2.66 Å. The Fe–C bond length is 1.91 Å. In the third Fe site, Fe is bonded in a 2-coordinate geometry to one Sm and thirteen Fe atoms. There are a spread of Fe–Fe bond distances ranging from 2.38–2.75 Å. In the fourth Fe site,more »« less

Authors:: The Materials Project

Publication Date:: Fri Jun 05 00:00:00 EDT 2020

Other Number(s):: mp-1219247

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; Sm2Fe17C2; C-Fe-Sm

OSTI Identifier:: 1680269

DOI:: https://doi.org/10.17188/1680269

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                    The Materials Project. Materials Data on Sm2Fe17C2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1680269.

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                    The Materials Project. Materials Data on Sm2Fe17C2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1680269

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                    The Materials Project. 2020.  
"Materials Data on Sm2Fe17C2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1680269.  https://www.osti.gov/servlets/purl/1680269. Pub date:Fri Jun 05 00:00:00 EDT 2020

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@article{osti_1680269,

  title        = {Materials Data on Sm2Fe17C2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Sm2Fe17C2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. Sm is bonded in a distorted bent 120 degrees geometry to nine Fe and two equivalent C atoms. There are a spread of Sm–Fe bond distances ranging from 3.06–3.38 Å. Both Sm–C bond lengths are 2.54 Å. There are seven inequivalent Fe sites. In the first Fe site, Fe is bonded to three equivalent Sm and nine Fe atoms to form distorted FeSm3Fe9 cuboctahedra that share corners with eleven FeSm3Fe9 cuboctahedra, corners with four equivalent CSm2Fe4 octahedra, edges with four FeSm3Fe9 cuboctahedra, faces with eight FeSm3Fe9 cuboctahedra, and faces with two equivalent CSm2Fe4 octahedra. The corner-sharing octahedra tilt angles range from 63–69°. There are a spread of Fe–Fe bond distances ranging from 2.48–2.67 Å. In the second Fe site, Fe is bonded in a single-bond geometry to five Fe and one C atom. There are a spread of Fe–Fe bond distances ranging from 2.47–2.66 Å. The Fe–C bond length is 1.91 Å. In the third Fe site, Fe is bonded in a 2-coordinate geometry to one Sm and thirteen Fe atoms. There are a spread of Fe–Fe bond distances ranging from 2.38–2.75 Å. In the fourth Fe site, Fe is bonded to two equivalent Sm and ten Fe atoms to form distorted FeSm2Fe10 cuboctahedra that share corners with fourteen FeSm3Fe9 cuboctahedra, edges with two equivalent FeSm3Fe9 cuboctahedra, faces with ten FeSm3Fe9 cuboctahedra, and faces with four equivalent CSm2Fe4 octahedra. All Fe–Fe bond lengths are 2.44 Å. In the fifth Fe site, Fe is bonded to two equivalent Sm and ten Fe atoms to form FeSm2Fe10 cuboctahedra that share corners with eight FeSm3Fe9 cuboctahedra, corners with two equivalent CSm2Fe4 octahedra, edges with four FeSm3Fe9 cuboctahedra, faces with eight FeSm3Fe9 cuboctahedra, and faces with two equivalent CSm2Fe4 octahedra. The corner-sharing octahedral tilt angles are 44°. All Fe–Fe bond lengths are 2.44 Å. In the sixth Fe site, Fe is bonded to two equivalent Sm and ten Fe atoms to form distorted FeSm2Fe10 cuboctahedra that share corners with eight FeSm3Fe9 cuboctahedra, corners with four equivalent CSm2Fe4 octahedra, edges with three FeSm2Fe10 cuboctahedra, edges with two equivalent CSm2Fe4 octahedra, and faces with nine FeSm3Fe9 cuboctahedra. The corner-sharing octahedra tilt angles range from 22–29°. Both Fe–Fe bond lengths are 2.48 Å. In the seventh Fe site, Fe is bonded in a single-bond geometry to six Fe and one C atom. The Fe–C bond length is 1.86 Å. C is bonded to two equivalent Sm and four Fe atoms to form CSm2Fe4 octahedra that share corners with ten FeSm3Fe9 cuboctahedra, corners with two equivalent CSm2Fe4 octahedra, edges with two equivalent FeSm2Fe10 cuboctahedra, and faces with six FeSm3Fe9 cuboctahedra. The corner-sharing octahedral tilt angles are 63°.},

  doi          = {10.17188/1680269},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jun 05 00:00:00 EDT 2020},

  month        = {Fri Jun 05 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1680269

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