Materials Data on Cu8SiSe6 by Materials Project

doi:10.17188/1187113

Title: Materials Data on Cu8SiSe6 by Materials Project

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Abstract

Cu8SiSe6 crystallizes in the orthorhombic Pmn2_1 space group. The structure is three-dimensional. there are five inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.37–3.05 Å. In the second Cu1+ site, Cu1+ is bonded in a distorted T-shaped geometry to three Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.42–2.60 Å. In the third Cu1+ site, Cu1+ is bonded to four Se2- atoms to form distorted CuSe4 tetrahedra that share corners with two equivalent SiSe4 tetrahedra and corners with six equivalent CuSe4 trigonal pyramids. There are a spread of Cu–Se bond distances ranging from 2.41–2.57 Å. In the fourth Cu1+ site, Cu1+ is bonded in a distorted trigonal planar geometry to three Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.45–2.55 Å. In the fifth Cu1+ site, Cu1+ is bonded to four Se2- atoms to form distorted CuSe4 trigonal pyramids that share corners with two equivalent SiSe4 tetrahedra, corners with three equivalent CuSe4 tetrahedra, a cornercorner with one CuSe4 trigonal pyramid, and an edgeedge with one CuSe4 trigonal pyramid. There are amore »« less

Authors:: The Materials Project

Publication Date:: 2020-07-20

Other Number(s):: mp-10428

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; Cu8SiSe6; Cu-Se-Si

OSTI Identifier:: 1187113

DOI:: https://doi.org/10.17188/1187113

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                    The Materials Project. Materials Data on Cu8SiSe6 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1187113.

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                    The Materials Project. Materials Data on Cu8SiSe6 by Materials Project.  United States.  doi:https://doi.org/10.17188/1187113

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                    The Materials Project. 2020.  
"Materials Data on Cu8SiSe6 by Materials Project".  United States.  doi:https://doi.org/10.17188/1187113.  https://www.osti.gov/servlets/purl/1187113. Pub date:Mon Jul 20 00:00:00 EDT 2020

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@article{osti_1187113,

  title        = {Materials Data on Cu8SiSe6 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Cu8SiSe6 crystallizes in the orthorhombic Pmn2_1 space group. The structure is three-dimensional. there are five inequivalent Cu1+ sites. In the first Cu1+ site, Cu1+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.37–3.05 Å. In the second Cu1+ site, Cu1+ is bonded in a distorted T-shaped geometry to three Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.42–2.60 Å. In the third Cu1+ site, Cu1+ is bonded to four Se2- atoms to form distorted CuSe4 tetrahedra that share corners with two equivalent SiSe4 tetrahedra and corners with six equivalent CuSe4 trigonal pyramids. There are a spread of Cu–Se bond distances ranging from 2.41–2.57 Å. In the fourth Cu1+ site, Cu1+ is bonded in a distorted trigonal planar geometry to three Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.45–2.55 Å. In the fifth Cu1+ site, Cu1+ is bonded to four Se2- atoms to form distorted CuSe4 trigonal pyramids that share corners with two equivalent SiSe4 tetrahedra, corners with three equivalent CuSe4 tetrahedra, a cornercorner with one CuSe4 trigonal pyramid, and an edgeedge with one CuSe4 trigonal pyramid. There are a spread of Cu–Se bond distances ranging from 2.43–2.73 Å. Si4+ is bonded to four Se2- atoms to form SiSe4 tetrahedra that share corners with two equivalent CuSe4 tetrahedra and corners with four equivalent CuSe4 trigonal pyramids. There are a spread of Si–Se bond distances ranging from 2.26–2.28 Å. There are five inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to four Cu1+ and one Si4+ atom. In the second Se2- site, Se2- is bonded in a distorted trigonal bipyramidal geometry to five Cu1+ atoms. In the third Se2- site, Se2- is bonded in a 6-coordinate geometry to eight Cu1+ atoms. In the fourth Se2- site, Se2- is bonded in a distorted tetrahedral geometry to three Cu1+ and one Si4+ atom. In the fifth Se2- site, Se2- is bonded in a 6-coordinate geometry to five Cu1+ and one Si4+ atom.},

  doi          = {10.17188/1187113},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {7}

}

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DOI: https://doi.org/10.17188/1187113

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