Materials Data on Er4FeS7 by Materials Project

doi:10.17188/1686621

Title: Materials Data on Er4FeS7 by Materials Project

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Abstract

Er4FeS7 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Er–S bond distances ranging from 2.71–3.06 Å. In the second Er3+ site, Er3+ is bonded to seven S2- atoms to form distorted ErS7 pentagonal bipyramids that share corners with two equivalent FeS6 octahedra, corners with six ErS6 octahedra, edges with four ErS6 octahedra, and faces with two equivalent ErS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 22–68°. There are a spread of Er–S bond distances ranging from 2.69–2.97 Å. In the third Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share a cornercorner with one ErS6 octahedra, corners with two equivalent FeS6 octahedra, corners with four equivalent ErS7 pentagonal bipyramids, edges with two equivalent ErS6 octahedra, edges with three equivalent FeS6 octahedra, and an edgeedge with one ErS7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 4–51°. There are a spread of Er–S bond distances ranging from 2.66–2.76 Å. In the fourth Er3+ site, Er3+ is bonded to six S2- atoms tomore »« less

Authors:: The Materials Project

Publication Date:: 2020-05-02

Other Number(s):: mp-1225645

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; Er4FeS7; Er-Fe-S

OSTI Identifier:: 1686621

DOI:: https://doi.org/10.17188/1686621

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                    The Materials Project. Materials Data on Er4FeS7 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1686621.

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                    The Materials Project. Materials Data on Er4FeS7 by Materials Project.  United States.  doi:https://doi.org/10.17188/1686621

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                    The Materials Project. 2020.  
"Materials Data on Er4FeS7 by Materials Project".  United States.  doi:https://doi.org/10.17188/1686621.  https://www.osti.gov/servlets/purl/1686621. Pub date:Sat May 02 00:00:00 EDT 2020

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@article{osti_1686621,

  title        = {Materials Data on Er4FeS7 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Er4FeS7 crystallizes in the monoclinic Cm space group. The structure is three-dimensional. there are four inequivalent Er3+ sites. In the first Er3+ site, Er3+ is bonded in a 7-coordinate geometry to seven S2- atoms. There are a spread of Er–S bond distances ranging from 2.71–3.06 Å. In the second Er3+ site, Er3+ is bonded to seven S2- atoms to form distorted ErS7 pentagonal bipyramids that share corners with two equivalent FeS6 octahedra, corners with six ErS6 octahedra, edges with four ErS6 octahedra, and faces with two equivalent ErS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 22–68°. There are a spread of Er–S bond distances ranging from 2.69–2.97 Å. In the third Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share a cornercorner with one ErS6 octahedra, corners with two equivalent FeS6 octahedra, corners with four equivalent ErS7 pentagonal bipyramids, edges with two equivalent ErS6 octahedra, edges with three equivalent FeS6 octahedra, and an edgeedge with one ErS7 pentagonal bipyramid. The corner-sharing octahedra tilt angles range from 4–51°. There are a spread of Er–S bond distances ranging from 2.66–2.76 Å. In the fourth Er3+ site, Er3+ is bonded to six S2- atoms to form ErS6 octahedra that share a cornercorner with one ErS6 octahedra, a cornercorner with one FeS6 octahedra, corners with two equivalent ErS7 pentagonal bipyramids, edges with two equivalent ErS6 octahedra, and edges with three equivalent ErS7 pentagonal bipyramids. The corner-sharing octahedra tilt angles range from 51–53°. There are a spread of Er–S bond distances ranging from 2.65–2.69 Å. Fe2+ is bonded to six S2- atoms to form FeS6 octahedra that share corners with three ErS6 octahedra, corners with two equivalent ErS7 pentagonal bipyramids, edges with two equivalent FeS6 octahedra, and edges with three equivalent ErS6 octahedra. The corner-sharing octahedra tilt angles range from 4–53°. There are a spread of Fe–S bond distances ranging from 2.48–2.65 Å. There are seven inequivalent S2- sites. In the first S2- site, S2- is bonded to three Er3+ and one Fe2+ atom to form distorted SEr3Fe tetrahedra that share corners with three SEr3Fe tetrahedra, corners with nine SEr5 trigonal bipyramids, and edges with two SEr5 trigonal bipyramids. In the second S2- site, S2- is bonded to four Er3+ atoms to form distorted SEr4 tetrahedra that share corners with three SEr3Fe tetrahedra, corners with five SEr4Fe trigonal bipyramids, and edges with three SEr5 trigonal bipyramids. In the third S2- site, S2- is bonded to five Er3+ atoms to form distorted SEr5 trigonal bipyramids that share corners with four equivalent SEr3Fe tetrahedra, corners with four SEr4Fe trigonal bipyramids, edges with three SEr3Fe tetrahedra, and edges with three SEr5 trigonal bipyramids. In the fourth S2- site, S2- is bonded in a 5-coordinate geometry to five Er3+ atoms. In the fifth S2- site, S2- is bonded to four Er3+ and one Fe2+ atom to form distorted SEr4Fe trigonal bipyramids that share corners with five SEr3Fe tetrahedra, corners with two equivalent SEr5 trigonal bipyramids, an edgeedge with one SEr4 tetrahedra, and edges with four SEr4Fe trigonal bipyramids. In the sixth S2- site, S2- is bonded to three Er3+ and two equivalent Fe2+ atoms to form distorted SEr3Fe2 trigonal bipyramids that share corners with five SEr3Fe tetrahedra, corners with two equivalent SEr5 trigonal bipyramids, an edgeedge with one SEr3Fe tetrahedra, and edges with five SEr5 trigonal bipyramids. In the seventh S2- site, S2- is bonded in a rectangular see-saw-like geometry to two equivalent Er3+ and two equivalent Fe2+ atoms.},

  doi          = {10.17188/1686621},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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DOI: https://doi.org/10.17188/1686621

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