Materials Data on K2Hg3(GeSe4)2 by Materials Project

doi:10.17188/1192442

Title: Materials Data on K2Hg3(GeSe4)2 by Materials Project

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Abstract

K2Hg3Ge2Se8 crystallizes in the orthorhombic Aea2 space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of K–Se bond distances ranging from 3.37–3.98 Å. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a see-saw-like geometry to four Se2- atoms. There are a spread of Hg–Se bond distances ranging from 2.60–3.01 Å. In the second Hg2+ site, Hg2+ is bonded in a distorted linear geometry to four Se2- atoms. There are two shorter (2.51 Å) and two longer (3.42 Å) Hg–Se bond lengths. Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.35–2.43 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to two equivalent K1+, two Hg2+, and one Ge4+ atom. In the second Se2- site, Se2- is bonded in a 2-coordinate geometry to two equivalent K1+, one Hg2+, and one Ge4+ atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to two equivalent K1+, one Hg2+, and one Ge4+ atom. In the fourth Se2- site,more »« less

Publication Date:: 2020-04-29

Other Number(s):: mp-17307

DOE Contract Number:: AC02-05CH11231

Research Org.:: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Collaborations:: The Materials Project; MIT; UC Berkeley; Duke; U Louvain

Subject:: 36 MATERIALS SCIENCE; Ge-Hg-K-Se; K2Hg3(GeSe4)2; crystal structure

OSTI Identifier:: 1192442

DOI:: https://doi.org/10.17188/1192442

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                    Materials Data on K2Hg3(GeSe4)2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1192442.

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                    Materials Data on K2Hg3(GeSe4)2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1192442

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                    2020.  
"Materials Data on K2Hg3(GeSe4)2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1192442.  https://www.osti.gov/servlets/purl/1192442. Pub date:Wed Apr 29 04:00:00 UTC 2020

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@article{osti_1192442,

  title        = {Materials Data on K2Hg3(GeSe4)2 by Materials Project},

  
  abstractNote = {K2Hg3Ge2Se8 crystallizes in the orthorhombic Aea2 space group. The structure is three-dimensional. K1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of K–Se bond distances ranging from 3.37–3.98 Å. There are two inequivalent Hg2+ sites. In the first Hg2+ site, Hg2+ is bonded in a see-saw-like geometry to four Se2- atoms. There are a spread of Hg–Se bond distances ranging from 2.60–3.01 Å. In the second Hg2+ site, Hg2+ is bonded in a distorted linear geometry to four Se2- atoms. There are two shorter (2.51 Å) and two longer (3.42 Å) Hg–Se bond lengths. Ge4+ is bonded in a tetrahedral geometry to four Se2- atoms. There are a spread of Ge–Se bond distances ranging from 2.35–2.43 Å. There are four inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to two equivalent K1+, two Hg2+, and one Ge4+ atom. In the second Se2- site, Se2- is bonded in a 2-coordinate geometry to two equivalent K1+, one Hg2+, and one Ge4+ atom. In the third Se2- site, Se2- is bonded in a 4-coordinate geometry to two equivalent K1+, one Hg2+, and one Ge4+ atom. In the fourth Se2- site, Se2- is bonded in a 4-coordinate geometry to two equivalent K1+, two equivalent Hg2+, and one Ge4+ atom.},

  doi          = {10.17188/1192442},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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DOI: https://doi.org/10.17188/1192442

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