Materials Data on Ta4SiTe4 by Materials Project

doi:10.17188/1202601

Title: Materials Data on Ta4SiTe4 by Materials Project

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Abstract

Ta4SiTe4 crystallizes in the orthorhombic Pbam space group. The structure is one-dimensional and consists of two Ta4SiTe4 ribbons oriented in the (1, 0, 0) direction. there are two inequivalent Ta3+ sites. In the first Ta3+ site, Ta3+ is bonded to two equivalent Si4- and four Te2- atoms to form a mixture of distorted edge, face, and corner-sharing TaSi2Te4 octahedra. The corner-sharing octahedra tilt angles range from 40–69°. Both Ta–Si bond lengths are 2.60 Å. There are two shorter (2.86 Å) and two longer (2.94 Å) Ta–Te bond lengths. In the second Ta3+ site, Ta3+ is bonded to two equivalent Si4- and four Te2- atoms to form a mixture of distorted edge, face, and corner-sharing TaSi2Te4 octahedra. The corner-sharing octahedra tilt angles range from 40–70°. Both Ta–Si bond lengths are 2.61 Å. There are two shorter (2.86 Å) and two longer (2.94 Å) Ta–Te bond lengths. Si4- is bonded in a 10-coordinate geometry to eight Ta3+ and two equivalent Si4- atoms. Both Si–Si bond lengths are 2.42 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 4-coordinate geometry to four Ta3+ atoms. In the second Te2- site, Te2- is bonded in a 4-coordinatemore » geometry to four Ta3+ atoms.« less

Authors:: The Materials Project

Publication Date:: 2020-04-29

Other Number(s):: mp-28509

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; Ta4SiTe4; Si-Ta-Te

OSTI Identifier:: 1202601

DOI:: https://doi.org/10.17188/1202601

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                    The Materials Project. Materials Data on Ta4SiTe4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1202601.

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                    The Materials Project. Materials Data on Ta4SiTe4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1202601

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                    The Materials Project. 2020.  
"Materials Data on Ta4SiTe4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1202601.  https://www.osti.gov/servlets/purl/1202601. Pub date:Wed Apr 29 00:00:00 EDT 2020

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@article{osti_1202601,

  title        = {Materials Data on Ta4SiTe4 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ta4SiTe4 crystallizes in the orthorhombic Pbam space group. The structure is one-dimensional and consists of two Ta4SiTe4 ribbons oriented in the (1, 0, 0) direction. there are two inequivalent Ta3+ sites. In the first Ta3+ site, Ta3+ is bonded to two equivalent Si4- and four Te2- atoms to form a mixture of distorted edge, face, and corner-sharing TaSi2Te4 octahedra. The corner-sharing octahedra tilt angles range from 40–69°. Both Ta–Si bond lengths are 2.60 Å. There are two shorter (2.86 Å) and two longer (2.94 Å) Ta–Te bond lengths. In the second Ta3+ site, Ta3+ is bonded to two equivalent Si4- and four Te2- atoms to form a mixture of distorted edge, face, and corner-sharing TaSi2Te4 octahedra. The corner-sharing octahedra tilt angles range from 40–70°. Both Ta–Si bond lengths are 2.61 Å. There are two shorter (2.86 Å) and two longer (2.94 Å) Ta–Te bond lengths. Si4- is bonded in a 10-coordinate geometry to eight Ta3+ and two equivalent Si4- atoms. Both Si–Si bond lengths are 2.42 Å. There are two inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a 4-coordinate geometry to four Ta3+ atoms. In the second Te2- site, Te2- is bonded in a 4-coordinate geometry to four Ta3+ atoms.},

  doi          = {10.17188/1202601},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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DOI: https://doi.org/10.17188/1202601

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