Materials Data on NaNbSe2O7 by Materials Project

doi:10.17188/1744689

Title: Materials Data on NaNbSe2O7 by Materials Project

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Abstract

NaNbO(SeO3)2 crystallizes in the orthorhombic Cmc2_1 space group. The structure is two-dimensional and consists of two NaNbO(SeO3)2 sheets oriented in the (0, 1, 0) direction. Na1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. There are two shorter (2.46 Å) and two longer (2.50 Å) Na–O bond lengths. Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles are 40°. There are a spread of Nb–O bond distances ranging from 1.83–2.17 Å. Se4+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.67 Å) and two longer (1.78 Å) Se–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Nb5+ and one Se4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Nb5+ and one Se4+ atom. In the third O2- site, O2- is bonded in a trigonal non-coplanar geometry to two equivalent Na1+ and one Se4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Nb5+ atoms.

Authors:: The Materials Project

Publication Date:: 2020-05-09

Other Number(s):: mp-1190450

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; NaNbSe2O7; Na-Nb-O-Se

OSTI Identifier:: 1744689

DOI:: https://doi.org/10.17188/1744689

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                    The Materials Project. Materials Data on NaNbSe2O7 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1744689.

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                    The Materials Project. Materials Data on NaNbSe2O7 by Materials Project.  United States.  doi:https://doi.org/10.17188/1744689

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                    The Materials Project. 2020.  
"Materials Data on NaNbSe2O7 by Materials Project".  United States.  doi:https://doi.org/10.17188/1744689.  https://www.osti.gov/servlets/purl/1744689. Pub date:Sat May 09 00:00:00 EDT 2020

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@article{osti_1744689,

  title        = {Materials Data on NaNbSe2O7 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {NaNbO(SeO3)2 crystallizes in the orthorhombic Cmc2_1 space group. The structure is two-dimensional and consists of two NaNbO(SeO3)2 sheets oriented in the (0, 1, 0) direction. Na1+ is bonded in a 4-coordinate geometry to four equivalent O2- atoms. There are two shorter (2.46 Å) and two longer (2.50 Å) Na–O bond lengths. Nb5+ is bonded to six O2- atoms to form corner-sharing NbO6 octahedra. The corner-sharing octahedral tilt angles are 40°. There are a spread of Nb–O bond distances ranging from 1.83–2.17 Å. Se4+ is bonded in a trigonal non-coplanar geometry to three O2- atoms. There is one shorter (1.67 Å) and two longer (1.78 Å) Se–O bond length. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a bent 150 degrees geometry to one Nb5+ and one Se4+ atom. In the second O2- site, O2- is bonded in a 2-coordinate geometry to one Nb5+ and one Se4+ atom. In the third O2- site, O2- is bonded in a trigonal non-coplanar geometry to two equivalent Na1+ and one Se4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to two equivalent Nb5+ atoms.},

  doi          = {10.17188/1744689},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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DOI: https://doi.org/10.17188/1744689

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