Materials Data on Ta3SiTe6 by Materials Project

doi:10.17188/1262362

Title: Materials Data on Ta3SiTe6 by Materials Project

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Abstract

Ta3SiTe6 crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two Ta3SiTe6 sheets oriented in the (0, 0, 1) direction. there are three inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded to one Si4- and six Te+1.83- atoms to form distorted TaSiTe6 pentagonal bipyramids that share an edgeedge with one SiTa4Te4 hexagonal bipyramid, edges with four TaSiTe6 pentagonal bipyramids, and a faceface with one TaSiTe6 pentagonal bipyramid. The Ta–Si bond length is 2.84 Å. There are a spread of Ta–Te bond distances ranging from 2.80–2.88 Å. In the second Ta5+ site, Ta5+ is bonded in a 8-coordinate geometry to two equivalent Si4- and six Te+1.83- atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Ta–Si bond lengths. There are a spread of Ta–Te bond distances ranging from 2.83–2.95 Å. In the third Ta5+ site, Ta5+ is bonded to one Si4- and six Te+1.83- atoms to form distorted TaSiTe6 pentagonal bipyramids that share edges with two equivalent SiTa4Te4 hexagonal bipyramids, edges with two equivalent TaSiTe6 pentagonal bipyramids, and a faceface with one TaSiTe6 pentagonal bipyramid. The Ta–Si bond length is 2.73 Å. There are a spread of Ta–Te bond distancesmore »« less

Authors:: The Materials Project

Publication Date:: Sat May 02 00:00:00 EDT 2020

Other Number(s):: mp-505206

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; Ta3SiTe6; Si-Ta-Te

OSTI Identifier:: 1262362

DOI:: https://doi.org/10.17188/1262362

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                    The Materials Project. Materials Data on Ta3SiTe6 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1262362.

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                    The Materials Project. Materials Data on Ta3SiTe6 by Materials Project.  United States.  doi:https://doi.org/10.17188/1262362

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                    The Materials Project. 2020.  
"Materials Data on Ta3SiTe6 by Materials Project".  United States.  doi:https://doi.org/10.17188/1262362.  https://www.osti.gov/servlets/purl/1262362. Pub date:Sat May 02 00:00:00 EDT 2020

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@article{osti_1262362,

  title        = {Materials Data on Ta3SiTe6 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ta3SiTe6 crystallizes in the orthorhombic Pnma space group. The structure is two-dimensional and consists of two Ta3SiTe6 sheets oriented in the (0, 0, 1) direction. there are three inequivalent Ta5+ sites. In the first Ta5+ site, Ta5+ is bonded to one Si4- and six Te+1.83- atoms to form distorted TaSiTe6 pentagonal bipyramids that share an edgeedge with one SiTa4Te4 hexagonal bipyramid, edges with four TaSiTe6 pentagonal bipyramids, and a faceface with one TaSiTe6 pentagonal bipyramid. The Ta–Si bond length is 2.84 Å. There are a spread of Ta–Te bond distances ranging from 2.80–2.88 Å. In the second Ta5+ site, Ta5+ is bonded in a 8-coordinate geometry to two equivalent Si4- and six Te+1.83- atoms. There are one shorter (2.83 Å) and one longer (2.84 Å) Ta–Si bond lengths. There are a spread of Ta–Te bond distances ranging from 2.83–2.95 Å. In the third Ta5+ site, Ta5+ is bonded to one Si4- and six Te+1.83- atoms to form distorted TaSiTe6 pentagonal bipyramids that share edges with two equivalent SiTa4Te4 hexagonal bipyramids, edges with two equivalent TaSiTe6 pentagonal bipyramids, and a faceface with one TaSiTe6 pentagonal bipyramid. The Ta–Si bond length is 2.73 Å. There are a spread of Ta–Te bond distances ranging from 2.76–2.96 Å. Si4- is bonded to four Ta5+ and four Te+1.83- atoms to form distorted SiTa4Te4 hexagonal bipyramids that share corners with two equivalent SiTa4Te4 hexagonal bipyramids and edges with three TaSiTe6 pentagonal bipyramids. There are two shorter (2.71 Å) and two longer (2.76 Å) Si–Te bond lengths. There are three inequivalent Te+1.83- sites. In the first Te+1.83- site, Te+1.83- is bonded in a 3-coordinate geometry to three Ta5+ atoms. In the second Te+1.83- site, Te+1.83- is bonded in a 4-coordinate geometry to three Ta5+ and one Si4- atom. In the third Te+1.83- site, Te+1.83- is bonded in a 4-coordinate geometry to three Ta5+ and one Si4- atom.},

  doi          = {10.17188/1262362},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat May 02 00:00:00 EDT 2020},

  month        = {Sat May 02 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1262362

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