Materials Data on YAgSe2 by Materials Project

doi:10.17188/1744105

Title: Materials Data on YAgSe2 by Materials Project

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Abstract

YAgSe2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Y3+ is bonded to six Se2- atoms to form YSe6 octahedra that share corners with four equivalent YSe6 octahedra, corners with six equivalent AgSe4 trigonal pyramids, edges with four equivalent YSe6 octahedra, and edges with three equivalent AgSe4 trigonal pyramids. The corner-sharing octahedra tilt angles range from 44–51°. There are a spread of Y–Se bond distances ranging from 2.87–2.91 Å. Ag1+ is bonded to four Se2- atoms to form distorted AgSe4 trigonal pyramids that share corners with six equivalent YSe6 octahedra, corners with four equivalent AgSe4 trigonal pyramids, and edges with three equivalent YSe6 octahedra. The corner-sharing octahedra tilt angles range from 27–70°. There are a spread of Ag–Se bond distances ranging from 2.72–2.76 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to three equivalent Y3+ and two equivalent Ag1+ atoms to form a mixture of distorted edge and corner-sharing SeY3Ag2 trigonal bipyramids. In the second Se2- site, Se2- is bonded to three equivalent Y3+ and two equivalent Ag1+ atoms to form a mixture of distorted edge and corner-sharing SeY3Ag2 square pyramids.

Authors:: The Materials Project

Publication Date:: Sat May 09 00:00:00 EDT 2020

Other Number(s):: mp-1188559

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; YAgSe2; Ag-Se-Y

OSTI Identifier:: 1744105

DOI:: https://doi.org/10.17188/1744105

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                    The Materials Project. Materials Data on YAgSe2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1744105.

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                    The Materials Project. Materials Data on YAgSe2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1744105

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                    The Materials Project. 2020.  
"Materials Data on YAgSe2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1744105.  https://www.osti.gov/servlets/purl/1744105. Pub date:Sat May 09 00:00:00 EDT 2020

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@article{osti_1744105,

  title        = {Materials Data on YAgSe2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {YAgSe2 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. Y3+ is bonded to six Se2- atoms to form YSe6 octahedra that share corners with four equivalent YSe6 octahedra, corners with six equivalent AgSe4 trigonal pyramids, edges with four equivalent YSe6 octahedra, and edges with three equivalent AgSe4 trigonal pyramids. The corner-sharing octahedra tilt angles range from 44–51°. There are a spread of Y–Se bond distances ranging from 2.87–2.91 Å. Ag1+ is bonded to four Se2- atoms to form distorted AgSe4 trigonal pyramids that share corners with six equivalent YSe6 octahedra, corners with four equivalent AgSe4 trigonal pyramids, and edges with three equivalent YSe6 octahedra. The corner-sharing octahedra tilt angles range from 27–70°. There are a spread of Ag–Se bond distances ranging from 2.72–2.76 Å. There are two inequivalent Se2- sites. In the first Se2- site, Se2- is bonded to three equivalent Y3+ and two equivalent Ag1+ atoms to form a mixture of distorted edge and corner-sharing SeY3Ag2 trigonal bipyramids. In the second Se2- site, Se2- is bonded to three equivalent Y3+ and two equivalent Ag1+ atoms to form a mixture of distorted edge and corner-sharing SeY3Ag2 square pyramids.},

  doi          = {10.17188/1744105},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat May 09 00:00:00 EDT 2020},

  month        = {Sat May 09 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1744105

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