Materials Data on Ba2As2Se5 by Materials Project

doi:10.17188/1202468

Title: Materials Data on Ba2As2Se5 by Materials Project

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Abstract

Ba2As2Se5 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.34–3.81 Å. In the second Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.33–3.57 Å. In the third Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.34–3.61 Å. In the fourth Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.32–3.71 Å. There are four inequivalent As3+ sites. In the first As3+ site, As3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.43–2.55 Å. In the second As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.41–2.44 Å. In the third As3+ site,more »« less

Authors:: The Materials Project

Publication Date:: 2020-04-29

Other Number(s):: mp-28348

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; Ba2As2Se5; As-Ba-Se

OSTI Identifier:: 1202468

DOI:: https://doi.org/10.17188/1202468

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                    The Materials Project. Materials Data on Ba2As2Se5 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1202468.

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                    The Materials Project. Materials Data on Ba2As2Se5 by Materials Project.  United States.  doi:https://doi.org/10.17188/1202468

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                    The Materials Project. 2020.  
"Materials Data on Ba2As2Se5 by Materials Project".  United States.  doi:https://doi.org/10.17188/1202468.  https://www.osti.gov/servlets/purl/1202468. Pub date:Wed Apr 29 00:00:00 EDT 2020

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@article{osti_1202468,

  title        = {Materials Data on Ba2As2Se5 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ba2As2Se5 crystallizes in the monoclinic P2_1 space group. The structure is three-dimensional. there are four inequivalent Ba2+ sites. In the first Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.34–3.81 Å. In the second Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.33–3.57 Å. In the third Ba2+ site, Ba2+ is bonded in a 9-coordinate geometry to nine Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.34–3.61 Å. In the fourth Ba2+ site, Ba2+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Ba–Se bond distances ranging from 3.32–3.71 Å. There are four inequivalent As3+ sites. In the first As3+ site, As3+ is bonded in a trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.43–2.55 Å. In the second As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.41–2.44 Å. In the third As3+ site, As3+ is bonded in a 3-coordinate geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.41–2.55 Å. In the fourth As3+ site, As3+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are a spread of As–Se bond distances ranging from 2.39–2.46 Å. There are ten inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 1-coordinate geometry to three Ba2+ and one As3+ atom. In the second Se2- site, Se2- is bonded in a 4-coordinate geometry to three Ba2+ and one As3+ atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to two Ba2+ and two As3+ atoms. In the fourth Se2- site, Se2- is bonded in a 4-coordinate geometry to two equivalent Ba2+ and two As3+ atoms. In the fifth Se2- site, Se2- is bonded to four Ba2+ and one As3+ atom to form a mixture of distorted corner and edge-sharing SeBa4As square pyramids. In the sixth Se2- site, Se2- is bonded to four Ba2+ and one As3+ atom to form a mixture of distorted corner, edge, and face-sharing SeBa4As square pyramids. In the seventh Se2- site, Se2- is bonded to four Ba2+ and one As3+ atom to form a mixture of distorted corner and face-sharing SeBa4As square pyramids. In the eighth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Ba2+ and one As3+ atom. In the ninth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Ba2+ and one As3+ atom. In the tenth Se2- site, Se2- is bonded in a 5-coordinate geometry to four Ba2+ and one As3+ atom.},

  doi          = {10.17188/1202468},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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DOI: https://doi.org/10.17188/1202468

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