Materials Data on Sc4Si7Ni by Materials Project

doi:10.17188/1707119

Title: Materials Data on Sc4Si7Ni by Materials Project

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Abstract

Sc4NiSi7 crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. there are four inequivalent Sc+2.50+ sites. In the first Sc+2.50+ site, Sc+2.50+ is bonded in a 10-coordinate geometry to ten Si+1.71- atoms. There are a spread of Sc–Si bond distances ranging from 2.76–3.00 Å. In the second Sc+2.50+ site, Sc+2.50+ is bonded in a 8-coordinate geometry to eight Si+1.71- atoms. There are a spread of Sc–Si bond distances ranging from 2.74–2.85 Å. In the third Sc+2.50+ site, Sc+2.50+ is bonded to six Si+1.71- atoms to form a mixture of distorted edge and corner-sharing ScSi6 octahedra. The corner-sharing octahedral tilt angles are 97°. There are a spread of Sc–Si bond distances ranging from 2.66–2.80 Å. In the fourth Sc+2.50+ site, Sc+2.50+ is bonded in a 10-coordinate geometry to ten Si+1.71- atoms. There are a spread of Sc–Si bond distances ranging from 2.73–2.92 Å. Ni2+ is bonded in a 6-coordinate geometry to six Si+1.71- atoms. There are a spread of Ni–Si bond distances ranging from 2.66–2.74 Å. There are seven inequivalent Si+1.71- sites. In the first Si+1.71- site, Si+1.71- is bonded in a 10-coordinate geometry to four Sc+2.50+, two equivalent Ni2+, and four equivalent Si+1.71- atoms. All Si–Si bond lengthsmore »« less

Authors:: The Materials Project

Publication Date:: 2020-05-02

Other Number(s):: mp-1219409

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; Sc4Si7Ni; Ni-Sc-Si

OSTI Identifier:: 1707119

DOI:: https://doi.org/10.17188/1707119

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                    The Materials Project. Materials Data on Sc4Si7Ni by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1707119.

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                    The Materials Project. Materials Data on Sc4Si7Ni by Materials Project.  United States.  doi:https://doi.org/10.17188/1707119

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                    The Materials Project. 2020.  
"Materials Data on Sc4Si7Ni by Materials Project".  United States.  doi:https://doi.org/10.17188/1707119.  https://www.osti.gov/servlets/purl/1707119. Pub date:Sat May 02 00:00:00 EDT 2020

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@article{osti_1707119,

  title        = {Materials Data on Sc4Si7Ni by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Sc4NiSi7 crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. there are four inequivalent Sc+2.50+ sites. In the first Sc+2.50+ site, Sc+2.50+ is bonded in a 10-coordinate geometry to ten Si+1.71- atoms. There are a spread of Sc–Si bond distances ranging from 2.76–3.00 Å. In the second Sc+2.50+ site, Sc+2.50+ is bonded in a 8-coordinate geometry to eight Si+1.71- atoms. There are a spread of Sc–Si bond distances ranging from 2.74–2.85 Å. In the third Sc+2.50+ site, Sc+2.50+ is bonded to six Si+1.71- atoms to form a mixture of distorted edge and corner-sharing ScSi6 octahedra. The corner-sharing octahedral tilt angles are 97°. There are a spread of Sc–Si bond distances ranging from 2.66–2.80 Å. In the fourth Sc+2.50+ site, Sc+2.50+ is bonded in a 10-coordinate geometry to ten Si+1.71- atoms. There are a spread of Sc–Si bond distances ranging from 2.73–2.92 Å. Ni2+ is bonded in a 6-coordinate geometry to six Si+1.71- atoms. There are a spread of Ni–Si bond distances ranging from 2.66–2.74 Å. There are seven inequivalent Si+1.71- sites. In the first Si+1.71- site, Si+1.71- is bonded in a 10-coordinate geometry to four Sc+2.50+, two equivalent Ni2+, and four equivalent Si+1.71- atoms. All Si–Si bond lengths are 2.65 Å. In the second Si+1.71- site, Si+1.71- is bonded in a 8-coordinate geometry to four Sc+2.50+ and four equivalent Si+1.71- atoms. All Si–Si bond lengths are 2.66 Å. In the third Si+1.71- site, Si+1.71- is bonded in a distorted q6 geometry to four Sc+2.50+, two equivalent Ni2+, and four equivalent Si+1.71- atoms. In the fourth Si+1.71- site, Si+1.71- is bonded in a 8-coordinate geometry to four Sc+2.50+ and four equivalent Si+1.71- atoms. In the fifth Si+1.71- site, Si+1.71- is bonded in a 8-coordinate geometry to six Sc+2.50+ and two equivalent Si+1.71- atoms. Both Si–Si bond lengths are 2.40 Å. In the sixth Si+1.71- site, Si+1.71- is bonded in a 8-coordinate geometry to six Sc+2.50+ and two equivalent Si+1.71- atoms. In the seventh Si+1.71- site, Si+1.71- is bonded in a 8-coordinate geometry to six Sc+2.50+ and two equivalent Ni2+ atoms.},

  doi          = {10.17188/1707119},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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DOI: https://doi.org/10.17188/1707119

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