Materials Data on SrMg6FeO8 by Materials Project

doi:10.17188/1654159

Title: Materials Data on SrMg6FeO8 by Materials Project

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Abstract

SrMg6FeO8 is alpha Po-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Sr2+ is bonded to six O2- atoms to form SrO6 octahedra that share corners with two equivalent MgO6 octahedra, corners with four equivalent SrO6 octahedra, edges with four equivalent FeO6 octahedra, and edges with eight equivalent MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.23 Å) and two longer (2.40 Å) Sr–O bond lengths. There are three inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.14 Å) and four longer (2.23 Å) Mg–O bond lengths. In the second Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent SrO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.00 Å) and four longer (2.23 Å) Mg–O bond lengths. In the third Mg2+more »« less

Authors:: The Materials Project

Publication Date:: 2017-05-25

Other Number(s):: mp-1032456

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; SrMg6FeO8; Fe-Mg-O-Sr

OSTI Identifier:: 1654159

DOI:: https://doi.org/10.17188/1654159

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                    The Materials Project. Materials Data on SrMg6FeO8 by Materials Project.  United States: N. p., 2017. 
        Web.  doi:10.17188/1654159.

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                    The Materials Project. Materials Data on SrMg6FeO8 by Materials Project.  United States.  doi:https://doi.org/10.17188/1654159

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                    The Materials Project. 2017.  
"Materials Data on SrMg6FeO8 by Materials Project".  United States.  doi:https://doi.org/10.17188/1654159.  https://www.osti.gov/servlets/purl/1654159. Pub date:Thu May 25 00:00:00 EDT 2017

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@article{osti_1654159,

  title        = {Materials Data on SrMg6FeO8 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {SrMg6FeO8 is alpha Po-derived structured and crystallizes in the tetragonal P4/mmm space group. The structure is three-dimensional. Sr2+ is bonded to six O2- atoms to form SrO6 octahedra that share corners with two equivalent MgO6 octahedra, corners with four equivalent SrO6 octahedra, edges with four equivalent FeO6 octahedra, and edges with eight equivalent MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.23 Å) and two longer (2.40 Å) Sr–O bond lengths. There are three inequivalent Mg2+ sites. In the first Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent FeO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.14 Å) and four longer (2.23 Å) Mg–O bond lengths. In the second Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with two equivalent SrO6 octahedra, corners with four equivalent MgO6 octahedra, and edges with twelve MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are two shorter (2.00 Å) and four longer (2.23 Å) Mg–O bond lengths. In the third Mg2+ site, Mg2+ is bonded to six O2- atoms to form MgO6 octahedra that share corners with six equivalent MgO6 octahedra, edges with two equivalent SrO6 octahedra, edges with two equivalent FeO6 octahedra, and edges with eight MgO6 octahedra. The corner-sharing octahedra tilt angles range from 0–5°. There are a spread of Mg–O bond distances ranging from 2.10–2.30 Å. Fe2+ is bonded to six O2- atoms to form FeO6 octahedra that share corners with two equivalent MgO6 octahedra, corners with four equivalent FeO6 octahedra, edges with four equivalent SrO6 octahedra, and edges with eight equivalent MgO6 octahedra. The corner-sharing octahedral tilt angles are 0°. There are four shorter (2.23 Å) and two longer (2.25 Å) Fe–O bond lengths. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to five Mg2+ and one Fe2+ atom to form OMg5Fe octahedra that share corners with six equivalent OMg5Fe octahedra and edges with twelve OSrMg5 octahedra. The corner-sharing octahedra tilt angles range from 0–2°. In the second O2- site, O2- is bonded to one Sr2+ and five Mg2+ atoms to form OSrMg5 octahedra that share corners with six equivalent OSrMg5 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedra tilt angles range from 0–5°. In the third O2- site, O2- is bonded to two equivalent Sr2+, two equivalent Mg2+, and two equivalent Fe2+ atoms to form OSr2Mg2Fe2 octahedra that share corners with six OSr2Mg2Fe2 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedral tilt angles are 0°. In the fourth O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six OSr2Mg2Fe2 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedral tilt angles are 0°. In the fifth O2- site, O2- is bonded to two equivalent Sr2+, two equivalent Mg2+, and two equivalent Fe2+ atoms to form OSr2Mg2Fe2 octahedra that share corners with six OSr2Mg2Fe2 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedral tilt angles are 0°. Both O–Mg bond lengths are 2.30 Å. In the sixth O2- site, O2- is bonded to six Mg2+ atoms to form OMg6 octahedra that share corners with six OSr2Mg2Fe2 octahedra and edges with twelve OMg5Fe octahedra. The corner-sharing octahedral tilt angles are 0°. Both O–Mg bond lengths are 2.10 Å.},

  doi          = {10.17188/1654159},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2017},

  month        = {5}

}

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DOI: https://doi.org/10.17188/1654159

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