Materials Data on K3(Cu4Se3)2 by Materials Project

doi:10.17188/1208309

Title: Materials Data on K3(Cu4Se3)2 by Materials Project

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Abstract

K3(Cu4Se3)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 7-coordinate geometry to seven Se2- atoms. There are a spread of K–Se bond distances ranging from 3.32–3.71 Å. In the second K1+ site, K1+ is bonded in a body-centered cubic geometry to eight Se2- atoms. There are four shorter (3.42 Å) and four longer (3.44 Å) K–Se bond lengths. There are four inequivalent Cu+1.12+ sites. In the first Cu+1.12+ site, Cu+1.12+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.38–2.73 Å. In the second Cu+1.12+ site, Cu+1.12+ is bonded in a trigonal planar geometry to three Se2- atoms. There are two shorter (2.46 Å) and one longer (2.50 Å) Cu–Se bond lengths. In the third Cu+1.12+ site, Cu+1.12+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are one shorter (2.38 Å) and two longer (2.55 Å) Cu–Se bond lengths. In the fourth Cu+1.12+ site, Cu+1.12+ is bonded to four Se2- atoms to form a mixture of corner and edge-sharing CuSe4 tetrahedra. There are a spreadmore »« less

Authors:: The Materials Project

Publication Date:: Wed Jul 15 00:00:00 EDT 2020

Other Number(s):: mp-4647

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; K3(Cu4Se3)2; Cu-K-Se

OSTI Identifier:: 1208309

DOI:: https://doi.org/10.17188/1208309

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                    The Materials Project. Materials Data on K3(Cu4Se3)2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1208309.

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                    The Materials Project. Materials Data on K3(Cu4Se3)2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1208309

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                    The Materials Project. 2020.  
"Materials Data on K3(Cu4Se3)2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1208309.  https://www.osti.gov/servlets/purl/1208309. Pub date:Wed Jul 15 00:00:00 EDT 2020

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@article{osti_1208309,

  title        = {Materials Data on K3(Cu4Se3)2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {K3(Cu4Se3)2 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 7-coordinate geometry to seven Se2- atoms. There are a spread of K–Se bond distances ranging from 3.32–3.71 Å. In the second K1+ site, K1+ is bonded in a body-centered cubic geometry to eight Se2- atoms. There are four shorter (3.42 Å) and four longer (3.44 Å) K–Se bond lengths. There are four inequivalent Cu+1.12+ sites. In the first Cu+1.12+ site, Cu+1.12+ is bonded in a 4-coordinate geometry to four Se2- atoms. There are a spread of Cu–Se bond distances ranging from 2.38–2.73 Å. In the second Cu+1.12+ site, Cu+1.12+ is bonded in a trigonal planar geometry to three Se2- atoms. There are two shorter (2.46 Å) and one longer (2.50 Å) Cu–Se bond lengths. In the third Cu+1.12+ site, Cu+1.12+ is bonded in a distorted trigonal non-coplanar geometry to three Se2- atoms. There are one shorter (2.38 Å) and two longer (2.55 Å) Cu–Se bond lengths. In the fourth Cu+1.12+ site, Cu+1.12+ is bonded to four Se2- atoms to form a mixture of corner and edge-sharing CuSe4 tetrahedra. There are a spread of Cu–Se bond distances ranging from 2.49–2.59 Å. There are three inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 8-coordinate geometry to four K1+ and four Cu+1.12+ atoms. In the second Se2- site, Se2- is bonded in a 9-coordinate geometry to three equivalent K1+ and six Cu+1.12+ atoms. In the third Se2- site, Se2- is bonded in a 8-coordinate geometry to four K1+ and four Cu+1.12+ atoms.},

  doi          = {10.17188/1208309},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Wed Jul 15 00:00:00 EDT 2020},

  month        = {Wed Jul 15 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1208309

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