Materials Data on Sr3(GeAs2)2 by Materials Project

doi:10.17188/1192546

Title: Materials Data on Sr3(GeAs2)2 by Materials Project

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Abstract

Sr3(GeAs2)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to six As3- atoms to form a mixture of corner and edge-sharing SrAs6 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of Sr–As bond distances ranging from 3.14–3.33 Å. In the second Sr2+ site, Sr2+ is bonded to six As3- atoms to form a mixture of corner and edge-sharing SrAs6 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. There are a spread of Sr–As bond distances ranging from 3.15–3.26 Å. In the third Sr2+ site, Sr2+ is bonded to six As3- atoms to form a mixture of corner and edge-sharing SrAs6 octahedra. The corner-sharing octahedra tilt angles range from 2–7°. There are a spread of Sr–As bond distances ranging from 3.15–3.36 Å. There are two inequivalent Ge3+ sites. In the first Ge3+ site, Ge3+ is bonded in a trigonal non-coplanar geometry to three As3- atoms. There are a spread of Ge–As bond distances ranging from 2.45–2.54 Å. In the second Ge3+ site, Ge3+ is bonded in a trigonal non-coplanar geometry to three As3- atoms. There are one shortermore »« less

Authors:: The Materials Project

Publication Date:: Wed Apr 29 00:00:00 EDT 2020

Other Number(s):: mp-17504

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; Sr3(GeAs2)2; As-Ge-Sr

OSTI Identifier:: 1192546

DOI:: https://doi.org/10.17188/1192546

Citation Formats


                    The Materials Project. Materials Data on Sr3(GeAs2)2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1192546.

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                    The Materials Project. Materials Data on Sr3(GeAs2)2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1192546

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                    The Materials Project. 2020.  
"Materials Data on Sr3(GeAs2)2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1192546.  https://www.osti.gov/servlets/purl/1192546. Pub date:Wed Apr 29 00:00:00 EDT 2020

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@article{osti_1192546,

  title        = {Materials Data on Sr3(GeAs2)2 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Sr3(GeAs2)2 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are three inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded to six As3- atoms to form a mixture of corner and edge-sharing SrAs6 octahedra. The corner-sharing octahedra tilt angles range from 3–10°. There are a spread of Sr–As bond distances ranging from 3.14–3.33 Å. In the second Sr2+ site, Sr2+ is bonded to six As3- atoms to form a mixture of corner and edge-sharing SrAs6 octahedra. The corner-sharing octahedra tilt angles range from 2–10°. There are a spread of Sr–As bond distances ranging from 3.15–3.26 Å. In the third Sr2+ site, Sr2+ is bonded to six As3- atoms to form a mixture of corner and edge-sharing SrAs6 octahedra. The corner-sharing octahedra tilt angles range from 2–7°. There are a spread of Sr–As bond distances ranging from 3.15–3.36 Å. There are two inequivalent Ge3+ sites. In the first Ge3+ site, Ge3+ is bonded in a trigonal non-coplanar geometry to three As3- atoms. There are a spread of Ge–As bond distances ranging from 2.45–2.54 Å. In the second Ge3+ site, Ge3+ is bonded in a trigonal non-coplanar geometry to three As3- atoms. There are one shorter (2.50 Å) and two longer (2.52 Å) Ge–As bond lengths. There are four inequivalent As3- sites. In the first As3- site, As3- is bonded to four Sr2+ and two equivalent Ge3+ atoms to form AsSr4Ge2 octahedra that share corners with eight AsSr5Ge octahedra and edges with eight AsSr4Ge2 octahedra. The corner-sharing octahedra tilt angles range from 3–93°. In the second As3- site, As3- is bonded to four Sr2+ and two Ge3+ atoms to form a mixture of corner and edge-sharing AsSr4Ge2 octahedra. The corner-sharing octahedra tilt angles range from 6–94°. In the third As3- site, As3- is bonded to five Sr2+ and one Ge3+ atom to form a mixture of corner and edge-sharing AsSr5Ge octahedra. The corner-sharing octahedra tilt angles range from 3–87°. In the fourth As3- site, As3- is bonded to five Sr2+ and one Ge3+ atom to form a mixture of corner and edge-sharing AsSr5Ge octahedra. The corner-sharing octahedra tilt angles range from 3–93°.},

  doi          = {10.17188/1192546},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Wed Apr 29 00:00:00 EDT 2020},

  month        = {Wed Apr 29 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1192546

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