Materials Data on Sr4NbAlO8 by Materials Project

doi:10.17188/1270163

Title: Materials Data on Sr4NbAlO8 by Materials Project

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Abstract

Sr4AlNbO8 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.88 Å. In the second Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–2.96 Å. In the third Sr2+ site, Sr2+ is bonded to six O2- atoms to form distorted SrO6 pentagonal pyramids that share corners with three equivalent NbO6 octahedra and corners with three equivalent AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–21°. There are a spread of Sr–O bond distances ranging from 2.43–2.62 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.16 Å. Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent NbO6 octahedra, corners with three equivalent SrO6 pentagonal pyramids, and a cornercorner with one AlO4 tetrahedra. The corner-sharing octahedral tilt angles are 9°. There are a spread ofmore »« less

Authors:: The Materials Project

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

Other Number(s):: mp-558114

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; Sr4NbAlO8; Al-Nb-O-Sr

OSTI Identifier:: 1270163

DOI:: https://doi.org/10.17188/1270163

Citation Formats


                    The Materials Project. Materials Data on Sr4NbAlO8 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1270163.

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                    The Materials Project. Materials Data on Sr4NbAlO8 by Materials Project.  United States.  doi:https://doi.org/10.17188/1270163

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                    The Materials Project. 2020.  
"Materials Data on Sr4NbAlO8 by Materials Project".  United States.  doi:https://doi.org/10.17188/1270163.  https://www.osti.gov/servlets/purl/1270163. Pub date:Thu Apr 30 00:00:00 EDT 2020

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@article{osti_1270163,

  title        = {Materials Data on Sr4NbAlO8 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Sr4AlNbO8 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are four inequivalent Sr2+ sites. In the first Sr2+ site, Sr2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Sr–O bond distances ranging from 2.44–2.88 Å. In the second Sr2+ site, Sr2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Sr–O bond distances ranging from 2.41–2.96 Å. In the third Sr2+ site, Sr2+ is bonded to six O2- atoms to form distorted SrO6 pentagonal pyramids that share corners with three equivalent NbO6 octahedra and corners with three equivalent AlO4 tetrahedra. The corner-sharing octahedra tilt angles range from 4–21°. There are a spread of Sr–O bond distances ranging from 2.43–2.62 Å. In the fourth Sr2+ site, Sr2+ is bonded in a 10-coordinate geometry to ten O2- atoms. There are a spread of Sr–O bond distances ranging from 2.58–3.16 Å. Nb5+ is bonded to six O2- atoms to form NbO6 octahedra that share corners with two equivalent NbO6 octahedra, corners with three equivalent SrO6 pentagonal pyramids, and a cornercorner with one AlO4 tetrahedra. The corner-sharing octahedral tilt angles are 9°. There are a spread of Nb–O bond distances ranging from 1.93–2.15 Å. Al3+ is bonded to four O2- atoms to form AlO4 tetrahedra that share a cornercorner with one NbO6 octahedra and corners with three equivalent SrO6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 20°. There are a spread of Al–O bond distances ranging from 1.77–1.82 Å. There are eight inequivalent O2- sites. In the first O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and one Al3+ atom. In the second O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+, one Nb5+, and one Al3+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to five Sr2+ and one Nb5+ atom. In the fourth O2- site, O2- is bonded in a 4-coordinate geometry to three Sr2+ and one Al3+ atom. In the fifth O2- site, O2- is bonded in a distorted tetrahedral geometry to three Sr2+ and one Al3+ atom. In the sixth O2- site, O2- is bonded in a 3-coordinate geometry to four Sr2+ and two equivalent Nb5+ atoms. In the seventh O2- site, O2- is bonded in a 1-coordinate geometry to four Sr2+ and one Nb5+ atom. In the eighth O2- site, O2- is bonded in a 6-coordinate geometry to five Sr2+ and one Nb5+ atom.},

  doi          = {10.17188/1270163},

  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/10.17188/1270163

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