Materials Data on LaNb8O14 by Materials Project

doi:10.17188/1740555

Title: Materials Data on LaNb8O14 by Materials Project

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Abstract

LaNb8O14 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with two equivalent LaO12 cuboctahedra, corners with four equivalent NbO5 square pyramids, edges with six NbO5 square pyramids, faces with four equivalent NbO6 octahedra, and faces with two equivalent NbO5 square pyramids. There are a spread of La–O bond distances ranging from 2.61–3.02 Å. There are three inequivalent Nb+3.12+ sites. In the first Nb+3.12+ site, Nb+3.12+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one LaO12 cuboctahedra, a cornercorner with one NbO6 octahedra, corners with six NbO5 square pyramids, an edgeedge with one LaO12 cuboctahedra, an edgeedge with one NbO6 octahedra, and an edgeedge with one NbO5 square pyramid. The corner-sharing octahedral tilt angles are 49°. There are a spread of Nb–O bond distances ranging from 2.08–2.19 Å. In the second Nb+3.12+ site, Nb+3.12+ is bonded to five O2- atoms to form NbO5 square pyramids that share corners with four equivalent NbO6 octahedra, corners with six equivalent NbO5 square pyramids, an edgeedge with one LaO12 cuboctahedra, and a faceface with one LaO12 cuboctahedra. The corner-sharing octahedramore »« less

Authors:: The Materials Project

Publication Date:: Fri May 01 00:00:00 EDT 2020

Other Number(s):: mp-1211668

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; LaNb8O14; La-Nb-O

OSTI Identifier:: 1740555

DOI:: https://doi.org/10.17188/1740555

Citation Formats


                    The Materials Project. Materials Data on LaNb8O14 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1740555.

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                    The Materials Project. Materials Data on LaNb8O14 by Materials Project.  United States.  doi:https://doi.org/10.17188/1740555

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                    The Materials Project. 2020.  
"Materials Data on LaNb8O14 by Materials Project".  United States.  doi:https://doi.org/10.17188/1740555.  https://www.osti.gov/servlets/purl/1740555. Pub date:Fri May 01 00:00:00 EDT 2020

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@article{osti_1740555,

  title        = {Materials Data on LaNb8O14 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {LaNb8O14 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share corners with two equivalent LaO12 cuboctahedra, corners with four equivalent NbO5 square pyramids, edges with six NbO5 square pyramids, faces with four equivalent NbO6 octahedra, and faces with two equivalent NbO5 square pyramids. There are a spread of La–O bond distances ranging from 2.61–3.02 Å. There are three inequivalent Nb+3.12+ sites. In the first Nb+3.12+ site, Nb+3.12+ is bonded to five O2- atoms to form NbO5 square pyramids that share a cornercorner with one LaO12 cuboctahedra, a cornercorner with one NbO6 octahedra, corners with six NbO5 square pyramids, an edgeedge with one LaO12 cuboctahedra, an edgeedge with one NbO6 octahedra, and an edgeedge with one NbO5 square pyramid. The corner-sharing octahedral tilt angles are 49°. There are a spread of Nb–O bond distances ranging from 2.08–2.19 Å. In the second Nb+3.12+ site, Nb+3.12+ is bonded to five O2- atoms to form NbO5 square pyramids that share corners with four equivalent NbO6 octahedra, corners with six equivalent NbO5 square pyramids, an edgeedge with one LaO12 cuboctahedra, and a faceface with one LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 5–48°. There are a spread of Nb–O bond distances ranging from 2.09–2.21 Å. In the third Nb+3.12+ site, Nb+3.12+ is bonded to six O2- atoms to form NbO6 octahedra that share a cornercorner with one NbO6 octahedra, corners with six NbO5 square pyramids, edges with two equivalent NbO5 square pyramids, and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedral tilt angles are 0°. There are a spread of Nb–O bond distances ranging from 1.97–2.10 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded to one La3+ and three Nb+3.12+ atoms to form distorted corner-sharing OLaNb3 tetrahedra. In the second O2- site, O2- is bonded in a distorted T-shaped geometry to one La3+ and three Nb+3.12+ atoms. In the third O2- site, O2- is bonded in a linear geometry to two equivalent La3+ and two equivalent Nb+3.12+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to three Nb+3.12+ atoms. In the fifth O2- site, O2- is bonded in a 4-coordinate geometry to one La3+ and three Nb+3.12+ atoms. In the sixth O2- site, O2- is bonded in a square co-planar geometry to four equivalent Nb+3.12+ atoms.},

  doi          = {10.17188/1740555},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri May 01 00:00:00 EDT 2020},

  month        = {Fri May 01 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1740555

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