Materials Data on Sm(Ga2Cu)4 by Materials Project

doi:10.17188/1753576

Title: Materials Data on Sm(Ga2Cu)4 by Materials Project

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Abstract

Sm(CuGa2)4 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Sm sites. In the first Sm site, Sm is bonded in a 8-coordinate geometry to twelve equivalent Cu and eight Ga atoms. All Sm–Cu bond lengths are 3.39 Å. All Sm–Ga bond lengths are 3.12 Å. In the second Sm site, Sm is bonded in a 8-coordinate geometry to six equivalent Cu and fourteen Ga atoms. All Sm–Cu bond lengths are 3.49 Å. There are eight shorter (3.18 Å) and six longer (3.30 Å) Sm–Ga bond lengths. Cu is bonded to two Sm, two equivalent Cu, and eight Ga atoms to form distorted CuSm2Ga8Cu2 cuboctahedra that share corners with five equivalent GaSm2Ga6Cu4 cuboctahedra, corners with nine equivalent CuSm2Ga8Cu2 cuboctahedra, edges with three equivalent CuSm2Ga8Cu2 cuboctahedra, edges with three equivalent GaSm2Ga6Cu4 cuboctahedra, faces with two equivalent GaSm2Ga6Cu4 cuboctahedra, and faces with eight equivalent CuSm2Ga8Cu2 cuboctahedra. Both Cu–Cu bond lengths are 2.61 Å. There are a spread of Cu–Ga bond distances ranging from 2.62–2.78 Å. There are five inequivalent Ga sites. In the first Ga site, Ga is bonded to two equivalent Sm, four equivalent Cu, and six Ga atoms to form distorted GaSm2Ga6Cu4 cuboctahedra thatmore »« less

Authors:: The Materials Project

Publication Date:: 2020-04-29

Other Number(s):: mp-1208763

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; Sm(Ga2Cu)4; Cu-Ga-Sm

OSTI Identifier:: 1753576

DOI:: https://doi.org/10.17188/1753576

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                    The Materials Project. Materials Data on Sm(Ga2Cu)4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1753576.

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                    The Materials Project. Materials Data on Sm(Ga2Cu)4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1753576

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                    The Materials Project. 2020.  
"Materials Data on Sm(Ga2Cu)4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1753576.  https://www.osti.gov/servlets/purl/1753576. Pub date:Wed Apr 29 00:00:00 EDT 2020

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@article{osti_1753576,

  title        = {Materials Data on Sm(Ga2Cu)4 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Sm(CuGa2)4 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. there are two inequivalent Sm sites. In the first Sm site, Sm is bonded in a 8-coordinate geometry to twelve equivalent Cu and eight Ga atoms. All Sm–Cu bond lengths are 3.39 Å. All Sm–Ga bond lengths are 3.12 Å. In the second Sm site, Sm is bonded in a 8-coordinate geometry to six equivalent Cu and fourteen Ga atoms. All Sm–Cu bond lengths are 3.49 Å. There are eight shorter (3.18 Å) and six longer (3.30 Å) Sm–Ga bond lengths. Cu is bonded to two Sm, two equivalent Cu, and eight Ga atoms to form distorted CuSm2Ga8Cu2 cuboctahedra that share corners with five equivalent GaSm2Ga6Cu4 cuboctahedra, corners with nine equivalent CuSm2Ga8Cu2 cuboctahedra, edges with three equivalent CuSm2Ga8Cu2 cuboctahedra, edges with three equivalent GaSm2Ga6Cu4 cuboctahedra, faces with two equivalent GaSm2Ga6Cu4 cuboctahedra, and faces with eight equivalent CuSm2Ga8Cu2 cuboctahedra. Both Cu–Cu bond lengths are 2.61 Å. There are a spread of Cu–Ga bond distances ranging from 2.62–2.78 Å. There are five inequivalent Ga sites. In the first Ga site, Ga is bonded to two equivalent Sm, four equivalent Cu, and six Ga atoms to form distorted GaSm2Ga6Cu4 cuboctahedra that share corners with four equivalent GaSm2Ga6Cu4 cuboctahedra, corners with ten equivalent CuSm2Ga8Cu2 cuboctahedra, an edgeedge with one GaSm2Ga6Cu4 cuboctahedra, edges with six equivalent CuSm2Ga8Cu2 cuboctahedra, faces with four equivalent CuSm2Ga8Cu2 cuboctahedra, and faces with five equivalent GaSm2Ga6Cu4 cuboctahedra. There are a spread of Ga–Ga bond distances ranging from 2.73–2.85 Å. In the second Ga site, Ga is bonded in a 8-coordinate geometry to one Sm, three equivalent Cu, and four Ga atoms. The Ga–Ga bond length is 2.62 Å. In the third Ga site, Ga is bonded in a 8-coordinate geometry to one Sm, six equivalent Cu, and seven Ga atoms. There are one shorter (2.73 Å) and six longer (3.01 Å) Ga–Ga bond lengths. In the fourth Ga site, Ga is bonded in a 5-coordinate geometry to one Sm, four equivalent Cu, and three Ga atoms. The Ga–Ga bond length is 2.77 Å. In the fifth Ga site, Ga is bonded in a 12-coordinate geometry to two equivalent Sm, four equivalent Cu, and six Ga atoms. Both Ga–Ga bond lengths are 2.68 Å.},

  doi          = {10.17188/1753576},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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DOI: https://doi.org/10.17188/1753576

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