Materials Data on K2NaNb(OF2)2 by Materials Project

doi:10.17188/1717128

Title: Materials Data on K2NaNb(OF2)2 by Materials Project

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Abstract

K2NaNbO2F4 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. K1+ is bonded to four equivalent O2- and eight equivalent F1- atoms to form KO4F8 cuboctahedra that share corners with twelve equivalent KO4F8 cuboctahedra, faces with six equivalent KO4F8 cuboctahedra, faces with four equivalent NaO2F4 octahedra, and faces with four equivalent NbO2F4 octahedra. All K–O bond lengths are 3.09 Å. All K–F bond lengths are 3.04 Å. Na1+ is bonded to two equivalent O2- and four equivalent F1- atoms to form NaO2F4 octahedra that share corners with six equivalent NbO2F4 octahedra and faces with eight equivalent KO4F8 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. Both Na–O bond lengths are 2.36 Å. All Na–F bond lengths are 2.31 Å. Nb5+ is bonded to two equivalent O2- and four equivalent F1- atoms to form NbO2F4 octahedra that share corners with six equivalent NaO2F4 octahedra and faces with eight equivalent KO4F8 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. Both Nb–O bond lengths are 1.89 Å. All Nb–F bond lengths are 2.04 Å. O2- is bonded in a distorted linear geometry to four equivalent K1+, one Na1+, and one Nb5+ atom. F1- is bonded inmore »« less

Publication Date:: 2020-05-03

Other Number(s):: mp-1223827

DOE Contract Number:: AC02-05CH11231

Research Org.:: LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)

Collaborations:: The Materials Project; MIT; UC Berkeley; Duke; U Louvain

Subject:: 36 MATERIALS SCIENCE; F-K-Na-Nb-O; K2NaNb(OF2)2; crystal structure

OSTI Identifier:: 1717128

DOI:: https://doi.org/10.17188/1717128

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                    Materials Data on K2NaNb(OF2)2 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1717128.

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                    Materials Data on K2NaNb(OF2)2 by Materials Project.  United States.  doi:https://doi.org/10.17188/1717128

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                    2020.  
"Materials Data on K2NaNb(OF2)2 by Materials Project".  United States.  doi:https://doi.org/10.17188/1717128.  https://www.osti.gov/servlets/purl/1717128. Pub date:Sun May 03 04:00:00 UTC 2020

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@article{osti_1717128,

  title        = {Materials Data on K2NaNb(OF2)2 by Materials Project},

  
  abstractNote = {K2NaNbO2F4 is (Cubic) Perovskite-derived structured and crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. K1+ is bonded to four equivalent O2- and eight equivalent F1- atoms to form KO4F8 cuboctahedra that share corners with twelve equivalent KO4F8 cuboctahedra, faces with six equivalent KO4F8 cuboctahedra, faces with four equivalent NaO2F4 octahedra, and faces with four equivalent NbO2F4 octahedra. All K–O bond lengths are 3.09 Å. All K–F bond lengths are 3.04 Å. Na1+ is bonded to two equivalent O2- and four equivalent F1- atoms to form NaO2F4 octahedra that share corners with six equivalent NbO2F4 octahedra and faces with eight equivalent KO4F8 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. Both Na–O bond lengths are 2.36 Å. All Na–F bond lengths are 2.31 Å. Nb5+ is bonded to two equivalent O2- and four equivalent F1- atoms to form NbO2F4 octahedra that share corners with six equivalent NaO2F4 octahedra and faces with eight equivalent KO4F8 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. Both Nb–O bond lengths are 1.89 Å. All Nb–F bond lengths are 2.04 Å. O2- is bonded in a distorted linear geometry to four equivalent K1+, one Na1+, and one Nb5+ atom. F1- is bonded in a distorted linear geometry to four equivalent K1+, one Na1+, and one Nb5+ atom.},

  doi          = {10.17188/1717128},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {5}

}

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DOI: https://doi.org/10.17188/1717128

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