Materials Data on Cr3N4 by Materials Project

doi:10.17188/1337354

Title: Materials Data on Cr3N4 by Materials Project

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Abstract

Cr3N4 is Hausmannite structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. there are two inequivalent Cr4+ sites. In the first Cr4+ site, Cr4+ is bonded to four equivalent N3- atoms to form corner-sharing CrN4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. All Cr–N bond lengths are 1.82 Å. In the second Cr4+ site, Cr4+ is bonded to six equivalent N3- atoms to form CrN6 octahedra that share corners with six equivalent CrN4 tetrahedra and edges with six equivalent CrN6 octahedra. All Cr–N bond lengths are 2.02 Å. N3- is bonded in a distorted rectangular see-saw-like geometry to four Cr4+ atoms.

Publication Date:: 2020-07-20

Other Number(s):: mp-1014379

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; Cr-N; Cr3N4; crystal structure

OSTI Identifier:: 1337354

DOI:: https://doi.org/10.17188/1337354

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                    Materials Data on Cr3N4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1337354.

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                    Materials Data on Cr3N4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1337354

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                    2020.  
"Materials Data on Cr3N4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1337354.  https://www.osti.gov/servlets/purl/1337354. Pub date:Mon Jul 20 00:00:00 EDT 2020

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@article{osti_1337354,

  title        = {Materials Data on Cr3N4 by Materials Project},

  
  abstractNote = {Cr3N4 is Hausmannite structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. there are two inequivalent Cr4+ sites. In the first Cr4+ site, Cr4+ is bonded to four equivalent N3- atoms to form corner-sharing CrN4 tetrahedra. The corner-sharing octahedral tilt angles are 56°. All Cr–N bond lengths are 1.82 Å. In the second Cr4+ site, Cr4+ is bonded to six equivalent N3- atoms to form CrN6 octahedra that share corners with six equivalent CrN4 tetrahedra and edges with six equivalent CrN6 octahedra. All Cr–N bond lengths are 2.02 Å. N3- is bonded in a distorted rectangular see-saw-like geometry to four Cr4+ atoms.},

  doi          = {10.17188/1337354},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {2020},

  month        = {7}

}

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DOI: https://doi.org/10.17188/1337354

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Materials Data on Cr3N4 by Materials Project

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Cr3N4 crystallizes in the cubic I-43d space group. The structure is three-dimensional. Cr4+ is bonded to four equivalent N3- atoms to form corner-sharing CrN4 tetrahedra. All Cr–N bond lengths are 1.84 Å. N3- is bonded in a trigonal planar geometry to three equivalent Cr4+ atoms.
Materials Data on Cr3N4 by Materials Project

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Cr3N4 is Corundum-like structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Cr4+ sites. In the first Cr4+ site, Cr4+ is bonded to six N3- atoms to form CrN6 octahedra that share corners with four equivalent CrN6 octahedra, corners with two equivalent CrN4 tetrahedra, edges with four CrN6 octahedra, and edges with two equivalent CrN4 tetrahedra. The corner-sharing octahedra tilt angles range from 51–55°. There are a spread of Cr–N bond distances ranging from 2.00–2.06 Å. In the second Cr4+ site, Cr4+ is bonded to six N3- atoms to form CrN6 octahedramore »« less
Materials Data on Cr3N4 by Materials Project

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Cr3N4 is Corundum-like structured and crystallizes in the monoclinic P2_1/m space group. The structure is three-dimensional. there are three inequivalent Cr4+ sites. In the first Cr4+ site, Cr4+ is bonded to six N3- atoms to form a mixture of corner, edge, and face-sharing CrN6 octahedra. The corner-sharing octahedra tilt angles range from 43–49°. There are a spread of Cr–N bond distances ranging from 1.90–2.04 Å. In the second Cr4+ site, Cr4+ is bonded to six N3- atoms to form a mixture of corner, edge, and face-sharing CrN6 octahedra. The corner-sharing octahedra tilt angles range from 43–49°. There are a spreadmore »« less
Materials Data on Cr3N4 by Materials Project

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Cr3N4 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. there are three inequivalent Cr4+ sites. In the first Cr4+ site, Cr4+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing CrN6 octahedra. The corner-sharing octahedra tilt angles range from 8–63°. There are a spread of Cr–N bond distances ranging from 1.90–2.19 Å. In the second Cr4+ site, Cr4+ is bonded in a 6-coordinate geometry to six N3- atoms. There are a spread of Cr–N bond distances ranging from 1.88–2.17 Å. In the third Cr4+ site, Cr4+ is bonded to six N3- atomsmore »« less
Materials Data on Cr3N4 by Materials Project

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Cr3N4 crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Cr4+ is bonded to six N3- atoms to form a mixture of edge and corner-sharing CrN6 octahedra. The corner-sharing octahedral tilt angles are 0°. All Cr–N bond lengths are 1.98 Å. There are two inequivalent N3- sites. In the first N3- site, N3- is bonded in a square co-planar geometry to four equivalent Cr4+ atoms. In the second N3- site, N3- is bonded to six equivalent Cr4+ atoms to form corner-sharing NCr6 octahedra. The corner-sharing octahedral tilt angles are 0°.

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