Materials Data on Mn4SiTeBr2O7 by Materials Project

doi:10.17188/1707074

Title: Materials Data on Mn4SiTeBr2O7 by Materials Project

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Abstract

Mn4SiTeO7Br2 crystallizes in the monoclinic P2_1/m space group. The structure is two-dimensional and consists of one Mn4SiTeO7Br2 sheet oriented in the (0, 0, 1) direction. there are three inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to three O2- and three Br1- atoms. There are two shorter (2.11 Å) and one longer (2.81 Å) Mn–O bond lengths. There are a spread of Mn–Br bond distances ranging from 2.59–3.01 Å. In the second Mn2+ site, Mn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.41 Å. In the third Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with three equivalent SiO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.17–2.36 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Si–O bond distances ranging from 1.65–1.67 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is two shorter (1.92 Å) and one longer (1.94 Å)more »« less

Authors:: The Materials Project

Publication Date:: 2020-06-04

Other Number(s):: mp-1193463

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; Mn4SiTeBr2O7; Br-Mn-O-Si-Te

OSTI Identifier:: 1707074

DOI:: https://doi.org/10.17188/1707074

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                    The Materials Project. Materials Data on Mn4SiTeBr2O7 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1707074.

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                    The Materials Project. Materials Data on Mn4SiTeBr2O7 by Materials Project.  United States.  doi:https://doi.org/10.17188/1707074

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                    The Materials Project. 2020.  
"Materials Data on Mn4SiTeBr2O7 by Materials Project".  United States.  doi:https://doi.org/10.17188/1707074.  https://www.osti.gov/servlets/purl/1707074. Pub date:Thu Jun 04 00:00:00 EDT 2020

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@article{osti_1707074,

  title        = {Materials Data on Mn4SiTeBr2O7 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Mn4SiTeO7Br2 crystallizes in the monoclinic P2_1/m space group. The structure is two-dimensional and consists of one Mn4SiTeO7Br2 sheet oriented in the (0, 0, 1) direction. there are three inequivalent Mn2+ sites. In the first Mn2+ site, Mn2+ is bonded in a 6-coordinate geometry to three O2- and three Br1- atoms. There are two shorter (2.11 Å) and one longer (2.81 Å) Mn–O bond lengths. There are a spread of Mn–Br bond distances ranging from 2.59–3.01 Å. In the second Mn2+ site, Mn2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mn–O bond distances ranging from 2.09–2.41 Å. In the third Mn2+ site, Mn2+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with three equivalent SiO4 tetrahedra. There are a spread of Mn–O bond distances ranging from 2.17–2.36 Å. Si4+ is bonded to four O2- atoms to form SiO4 tetrahedra that share corners with three equivalent MnO6 octahedra. The corner-sharing octahedral tilt angles are 50°. There are a spread of Si–O bond distances ranging from 1.65–1.67 Å. Te4+ is bonded in a 3-coordinate geometry to three O2- atoms. There is two shorter (1.92 Å) and one longer (1.94 Å) Te–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to two Mn2+ and one Si4+ atom. In the second O2- site, O2- is bonded in a rectangular see-saw-like geometry to three Mn2+ and one Te4+ atom. In the third O2- site, O2- is bonded to three Mn2+ and one Si4+ atom to form distorted edge-sharing OMn3Si tetrahedra. In the fourth O2- site, O2- is bonded to three Mn2+ and one Te4+ atom to form distorted OMn3Te trigonal pyramids that share a cornercorner with one OMn3Te trigonal pyramid, an edgeedge with one OMn3Si tetrahedra, and an edgeedge with one OMn3Te trigonal pyramid. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to three Mn2+ and one Si4+ atom. There are two inequivalent Br1- sites. In the first Br1- site, Br1- is bonded in a 1-coordinate geometry to two equivalent Mn2+ atoms. In the second Br1- site, Br1- is bonded in a distorted single-bond geometry to one Mn2+ atom.},

  doi          = {10.17188/1707074},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {6}

}

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DOI: https://doi.org/10.17188/1707074

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