Materials Data on Ti5Si4 by Materials Project

doi:10.17188/1262569

Title: Materials Data on Ti5Si4 by Materials Project

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Abstract

Ti5Si4 crystallizes in the tetragonal P4_12_12 space group. The structure is three-dimensional. there are three inequivalent Ti+3.20+ sites. In the first Ti+3.20+ site, Ti+3.20+ is bonded to six Si4- atoms to form TiSi6 octahedra that share corners with four equivalent TiSi6 octahedra, corners with eight equivalent TiSi7 pentagonal bipyramids, corners with six equivalent TiSi6 pentagonal pyramids, faces with four equivalent TiSi7 pentagonal bipyramids, and faces with four equivalent TiSi6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 53°. There are a spread of Ti–Si bond distances ranging from 2.57–2.70 Å. In the second Ti+3.20+ site, Ti+3.20+ is bonded to seven Si4- atoms to form distorted TiSi7 pentagonal bipyramids that share corners with four equivalent TiSi6 octahedra, corners with six equivalent TiSi7 pentagonal bipyramids, corners with five equivalent TiSi6 pentagonal pyramids, edges with three equivalent TiSi7 pentagonal bipyramids, edges with two equivalent TiSi6 pentagonal pyramids, faces with two equivalent TiSi6 octahedra, faces with two equivalent TiSi7 pentagonal bipyramids, and faces with four equivalent TiSi6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 43–51°. There are a spread of Ti–Si bond distances ranging from 2.58–2.88 Å. In the third Ti+3.20+ site, Ti+3.20+ is bonded to six Si4- atoms to form distortedmore »« less

Authors:: The Materials Project

Publication Date:: Sat Jul 18 00:00:00 EDT 2020

Other Number(s):: mp-505527

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; Ti5Si4; Si-Ti

OSTI Identifier:: 1262569

DOI:: https://doi.org/10.17188/1262569

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                    The Materials Project. Materials Data on Ti5Si4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1262569.

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                    The Materials Project. Materials Data on Ti5Si4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1262569

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                    The Materials Project. 2020.  
"Materials Data on Ti5Si4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1262569.  https://www.osti.gov/servlets/purl/1262569. Pub date:Sat Jul 18 00:00:00 EDT 2020

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@article{osti_1262569,

  title        = {Materials Data on Ti5Si4 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ti5Si4 crystallizes in the tetragonal P4_12_12 space group. The structure is three-dimensional. there are three inequivalent Ti+3.20+ sites. In the first Ti+3.20+ site, Ti+3.20+ is bonded to six Si4- atoms to form TiSi6 octahedra that share corners with four equivalent TiSi6 octahedra, corners with eight equivalent TiSi7 pentagonal bipyramids, corners with six equivalent TiSi6 pentagonal pyramids, faces with four equivalent TiSi7 pentagonal bipyramids, and faces with four equivalent TiSi6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 53°. There are a spread of Ti–Si bond distances ranging from 2.57–2.70 Å. In the second Ti+3.20+ site, Ti+3.20+ is bonded to seven Si4- atoms to form distorted TiSi7 pentagonal bipyramids that share corners with four equivalent TiSi6 octahedra, corners with six equivalent TiSi7 pentagonal bipyramids, corners with five equivalent TiSi6 pentagonal pyramids, edges with three equivalent TiSi7 pentagonal bipyramids, edges with two equivalent TiSi6 pentagonal pyramids, faces with two equivalent TiSi6 octahedra, faces with two equivalent TiSi7 pentagonal bipyramids, and faces with four equivalent TiSi6 pentagonal pyramids. The corner-sharing octahedra tilt angles range from 43–51°. There are a spread of Ti–Si bond distances ranging from 2.58–2.88 Å. In the third Ti+3.20+ site, Ti+3.20+ is bonded to six Si4- atoms to form distorted TiSi6 pentagonal pyramids that share corners with three equivalent TiSi6 octahedra, corners with five equivalent TiSi7 pentagonal bipyramids, corners with four equivalent TiSi6 pentagonal pyramids, edges with two equivalent TiSi7 pentagonal bipyramids, edges with four equivalent TiSi6 pentagonal pyramids, faces with two equivalent TiSi6 octahedra, and faces with four equivalent TiSi7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 35–45°. There are a spread of Ti–Si bond distances ranging from 2.47–2.63 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 9-coordinate geometry to eight Ti+3.20+ and one Si4- atom. The Si–Si bond length is 2.42 Å. In the second Si4- site, Si4- is bonded in a 9-coordinate geometry to eight Ti+3.20+ and one Si4- atom.},

  doi          = {10.17188/1262569},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Jul 18 00:00:00 EDT 2020},

  month        = {Sat Jul 18 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1262569

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