Materials Data on Rb9Fe2S7 by Materials Project

doi:10.17188/1190951

Title: Materials Data on Rb9Fe2S7 by Materials Project

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Abstract

Rb9Fe2S7 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are five inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five S2- atoms. There are a spread of Rb–S bond distances ranging from 3.51–3.59 Å. In the second Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are three shorter (3.40 Å) and three longer (3.52 Å) Rb–S bond lengths. In the third Rb1+ site, Rb1+ is bonded to six S2- atoms to form distorted RbS6 octahedra that share corners with three equivalent RbS5 square pyramids, corners with three equivalent FeS4 tetrahedra, and faces with three equivalent RbS5 square pyramids. There are three shorter (3.37 Å) and three longer (3.68 Å) Rb–S bond lengths. In the fourth Rb1+ site, Rb1+ is bonded in a distorted T-shaped geometry to three equivalent S2- atoms. All Rb–S bond lengths are 3.34 Å. In the fifth Rb1+ site, Rb1+ is bonded to five S2- atoms to form distorted RbS5 square pyramids that share a cornercorner with one RbS6 octahedra, corners with six equivalent RbS5 square pyramids, a cornercorner with one FeS4 tetrahedra, an edgeedge with one FeS4 tetrahedra,more »« less

Authors:: The Materials Project

Publication Date:: Thu Apr 30 00:00:00 EDT 2020

Other Number(s):: mp-14890

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; Rb9Fe2S7; Fe-Rb-S

OSTI Identifier:: 1190951

DOI:: https://doi.org/10.17188/1190951

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                    The Materials Project. Materials Data on Rb9Fe2S7 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1190951.

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                    The Materials Project. Materials Data on Rb9Fe2S7 by Materials Project.  United States.  doi:https://doi.org/10.17188/1190951

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                    The Materials Project. 2020.  
"Materials Data on Rb9Fe2S7 by Materials Project".  United States.  doi:https://doi.org/10.17188/1190951.  https://www.osti.gov/servlets/purl/1190951. Pub date:Thu Apr 30 00:00:00 EDT 2020

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@article{osti_1190951,

  title        = {Materials Data on Rb9Fe2S7 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Rb9Fe2S7 crystallizes in the cubic P2_13 space group. The structure is three-dimensional. there are five inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 5-coordinate geometry to five S2- atoms. There are a spread of Rb–S bond distances ranging from 3.51–3.59 Å. In the second Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six S2- atoms. There are three shorter (3.40 Å) and three longer (3.52 Å) Rb–S bond lengths. In the third Rb1+ site, Rb1+ is bonded to six S2- atoms to form distorted RbS6 octahedra that share corners with three equivalent RbS5 square pyramids, corners with three equivalent FeS4 tetrahedra, and faces with three equivalent RbS5 square pyramids. There are three shorter (3.37 Å) and three longer (3.68 Å) Rb–S bond lengths. In the fourth Rb1+ site, Rb1+ is bonded in a distorted T-shaped geometry to three equivalent S2- atoms. All Rb–S bond lengths are 3.34 Å. In the fifth Rb1+ site, Rb1+ is bonded to five S2- atoms to form distorted RbS5 square pyramids that share a cornercorner with one RbS6 octahedra, corners with six equivalent RbS5 square pyramids, a cornercorner with one FeS4 tetrahedra, an edgeedge with one FeS4 tetrahedra, and a faceface with one RbS6 octahedra. The corner-sharing octahedral tilt angles are 43°. There are a spread of Rb–S bond distances ranging from 3.19–3.40 Å. There are two inequivalent Fe+2.50+ sites. In the first Fe+2.50+ site, Fe+2.50+ is bonded to four S2- atoms to form FeS4 tetrahedra that share corners with three equivalent RbS6 octahedra, corners with three equivalent RbS5 square pyramids, and edges with three equivalent RbS5 square pyramids. The corner-sharing octahedral tilt angles are 43°. There are three shorter (2.32 Å) and one longer (2.36 Å) Fe–S bond lengths. In the second Fe+2.50+ site, Fe+2.50+ is bonded in a trigonal planar geometry to three equivalent S2- atoms. All Fe–S bond lengths are 2.24 Å. There are three inequivalent S2- sites. In the first S2- site, S2- is bonded in a 1-coordinate geometry to six Rb1+ and one Fe+2.50+ atom. In the second S2- site, S2- is bonded in a 1-coordinate geometry to six Rb1+ and one Fe+2.50+ atom. In the third S2- site, S2- is bonded in a 1-coordinate geometry to seven Rb1+ and one Fe+2.50+ atom.},

  doi          = {10.17188/1190951},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Apr 30 00:00:00 EDT 2020},

  month        = {Thu Apr 30 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1190951

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