Materials Data on K2Mn(SnSe3)2 by Materials Project

doi:10.17188/1281614

Title: Materials Data on K2Mn(SnSe3)2 by Materials Project

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Abstract

K2Mn(SnSe3)2 crystallizes in the tetragonal P4/ncc space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are four shorter (3.46 Å) and four longer (3.58 Å) K–Se bond lengths. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight equivalent Se2- atoms. There are four shorter (3.46 Å) and four longer (3.71 Å) K–Se bond lengths. Mn2+ is bonded to four equivalent Se2- atoms to form MnSe4 tetrahedra that share edges with two equivalent SnSe4 tetrahedra. All Mn–Se bond lengths are 2.58 Å. Sn4+ is bonded to four Se2- atoms to form SnSe4 tetrahedra that share an edgeedge with one MnSe4 tetrahedra and an edgeedge with one SnSe4 tetrahedra. There are two shorter (2.54 Å) and two longer (2.62 Å) Sn–Se bond lengths. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to two equivalent K1+ and two equivalent Sn4+ atoms to form a mixture of distorted edge and corner-sharing SeK2Sn2 trigonal pyramids. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to three K1+, one Mn2+, and onemore » Sn4+ atom.« less

Authors:: The Materials Project

Publication Date:: 2020-04-30

Other Number(s):: mp-669410

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; K2Mn(SnSe3)2; K-Mn-Se-Sn

OSTI Identifier:: 1281614

DOI:: https://doi.org/10.17188/1281614

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                    The Materials Project. Materials Data on K2Mn(SnSe3)2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1281614.

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                    The Materials Project. Materials Data on K2Mn(SnSe3)2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1281614

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                    The Materials Project. 2020.  
"Materials Data on K2Mn(SnSe3)2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1281614.  https://www.osti.gov/servlets/purl/1281614. Pub date:Thu Apr 30 00:00:00 EDT 2020

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@article{osti_1281614,

  title        = {Materials Data on K2Mn(SnSe3)2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {K2Mn(SnSe3)2 crystallizes in the tetragonal P4/ncc space group. The structure is three-dimensional. there are two inequivalent K1+ sites. In the first K1+ site, K1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are four shorter (3.46 Å) and four longer (3.58 Å) K–Se bond lengths. In the second K1+ site, K1+ is bonded in a 8-coordinate geometry to eight equivalent Se2- atoms. There are four shorter (3.46 Å) and four longer (3.71 Å) K–Se bond lengths. Mn2+ is bonded to four equivalent Se2- atoms to form MnSe4 tetrahedra that share edges with two equivalent SnSe4 tetrahedra. All Mn–Se bond lengths are 2.58 Å. Sn4+ is bonded to four Se2- atoms to form SnSe4 tetrahedra that share an edgeedge with one MnSe4 tetrahedra and an edgeedge with one SnSe4 tetrahedra. There are two shorter (2.54 Å) and two longer (2.62 Å) Sn–Se bond lengths. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to two equivalent K1+ and two equivalent Sn4+ atoms to form a mixture of distorted edge and corner-sharing SeK2Sn2 trigonal pyramids. In the second Se2- site, Se2- is bonded in a 5-coordinate geometry to three K1+, one Mn2+, and one Sn4+ atom.},

  doi          = {10.17188/1281614},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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DOI: https://doi.org/10.17188/1281614

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