Materials Data on Rb2Bi4Se7 by Materials Project

doi:10.17188/1744292

Title: Materials Data on Rb2Bi4Se7 by Materials Project

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Abstract

Rb2Bi4Se7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.46–3.78 Å. In the second Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.46–3.70 Å. There are four inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 9°. There are a spread of Bi–Se bond distances ranging from 2.90–3.08 Å. In the second Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 11°. There are a spread of Bi–Se bond distances ranging from 2.88–3.06 Å. In the third Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 4–11°. There are a spread of Bi–Se bond distancesmore »« less

Authors:: The Materials Project

Publication Date:: 2020-04-30

Other Number(s):: mp-1219787

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; Rb2Bi4Se7; Bi-Rb-Se

OSTI Identifier:: 1744292

DOI:: https://doi.org/10.17188/1744292

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                    The Materials Project. Materials Data on Rb2Bi4Se7 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1744292.

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                    The Materials Project. Materials Data on Rb2Bi4Se7 by Materials Project.  United States.  doi:https://doi.org/10.17188/1744292

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                    The Materials Project. 2020.  
"Materials Data on Rb2Bi4Se7 by Materials Project".  United States.  doi:https://doi.org/10.17188/1744292.  https://www.osti.gov/servlets/purl/1744292. Pub date:Thu Apr 30 00:00:00 EDT 2020

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@article{osti_1744292,

  title        = {Materials Data on Rb2Bi4Se7 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Rb2Bi4Se7 crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are two inequivalent Rb1+ sites. In the first Rb1+ site, Rb1+ is bonded in a 8-coordinate geometry to eight Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.46–3.78 Å. In the second Rb1+ site, Rb1+ is bonded in a 6-coordinate geometry to six Se2- atoms. There are a spread of Rb–Se bond distances ranging from 3.46–3.70 Å. There are four inequivalent Bi3+ sites. In the first Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 9°. There are a spread of Bi–Se bond distances ranging from 2.90–3.08 Å. In the second Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedral tilt angles are 11°. There are a spread of Bi–Se bond distances ranging from 2.88–3.06 Å. In the third Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 4–11°. There are a spread of Bi–Se bond distances ranging from 2.82–3.23 Å. In the fourth Bi3+ site, Bi3+ is bonded to six Se2- atoms to form a mixture of corner and edge-sharing BiSe6 octahedra. The corner-sharing octahedra tilt angles range from 4–9°. There are a spread of Bi–Se bond distances ranging from 2.83–3.22 Å. There are seven inequivalent Se2- sites. In the first Se2- site, Se2- is bonded in a 5-coordinate geometry to three equivalent Rb1+ and two equivalent Bi3+ atoms. In the second Se2- site, Se2- is bonded to two equivalent Rb1+ and three Bi3+ atoms to form SeRb2Bi3 square pyramids that share a cornercorner with one SeBi6 octahedra, corners with six SeRbBi4 trigonal bipyramids, edges with four SeRb3Bi3 octahedra, edges with two equivalent SeRb2Bi3 square pyramids, and edges with two SeRbBi4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 9°. In the third Se2- site, Se2- is bonded to one Rb1+ and four Bi3+ atoms to form SeRbBi4 trigonal bipyramids that share corners with three equivalent SeRb3Bi3 octahedra, corners with two equivalent SeRb2Bi3 square pyramids, corners with two equivalent SeRbBi4 trigonal bipyramids, edges with two equivalent SeBi6 octahedra, an edgeedge with one SeRb2Bi3 square pyramid, and edges with two equivalent SeRb2Bi3 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 6–35°. In the fourth Se2- site, Se2- is bonded to three Rb1+ and three Bi3+ atoms to form SeRb3Bi3 octahedra that share corners with two equivalent SeBi6 octahedra, corners with five SeRbBi4 trigonal bipyramids, edges with five SeRb3Bi3 octahedra, and edges with two equivalent SeRb2Bi3 square pyramids. The corner-sharing octahedral tilt angles are 6°. In the fifth Se2- site, Se2- is bonded to six Bi3+ atoms to form SeBi6 octahedra that share corners with two equivalent SeRb3Bi3 octahedra, a cornercorner with one SeRb2Bi3 square pyramid, a cornercorner with one SeRb2Bi3 trigonal bipyramid, edges with seven SeRb3Bi3 octahedra, edges with two equivalent SeRb2Bi3 square pyramids, and edges with two equivalent SeRbBi4 trigonal bipyramids. The corner-sharing octahedral tilt angles are 6°. In the sixth Se2- site, Se2- is bonded to two equivalent Rb1+ and three Bi3+ atoms to form distorted SeRb2Bi3 trigonal bipyramids that share corners with three SeRb3Bi3 octahedra, corners with four equivalent SeRb2Bi3 square pyramids, an edgeedge with one SeRb2Bi3 square pyramid, and edges with four SeRbBi4 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 2–43°. In the seventh Se2- site, Se2- is bonded in a 6-coordinate geometry to three Rb1+ and three equivalent Bi3+ atoms.},

  doi          = {10.17188/1744292},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {4}

}

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DOI: https://doi.org/10.17188/1744292

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