Materials Data on Ca5P8 by Materials Project

doi:10.17188/1202958

Title: Materials Data on Ca5P8 by Materials Project

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Abstract

Ca5P8 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six P+1.25- atoms to form CaP6 octahedra that share corners with four equivalent CaP6 octahedra, corners with two equivalent PP4 tetrahedra, edges with ten CaP6 octahedra, and edges with two equivalent PP4 tetrahedra. The corner-sharing octahedral tilt angles are 8°. There are four shorter (2.89 Å) and two longer (3.13 Å) Ca–P bond lengths. In the second Ca2+ site, Ca2+ is bonded to six P+1.25- atoms to form CaP6 octahedra that share corners with four equivalent CaP6 octahedra, corners with two equivalent PP4 tetrahedra, edges with ten CaP6 octahedra, and edges with two equivalent PP4 tetrahedra. The corner-sharing octahedral tilt angles are 9°. There are a spread of Ca–P bond distances ranging from 2.90–3.04 Å. In the third Ca2+ site, Ca2+ is bonded to six P+1.25- atoms to form CaP6 octahedra that share corners with six CaP6 octahedra, corners with six equivalent PP4 tetrahedra, and edges with nine CaP6 octahedra. The corner-sharing octahedra tilt angles range from 8–9°. There are four shorter (2.95 Å) and two longer (2.97 Å) Ca–P bond lengths. Theremore »« less

Authors:: The Materials Project

Publication Date:: Fri Jul 17 00:00:00 EDT 2020

Other Number(s):: mp-28879

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; Ca5P8; Ca-P

OSTI Identifier:: 1202958

DOI:: https://doi.org/10.17188/1202958

Citation Formats


                    The Materials Project. Materials Data on Ca5P8 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1202958.

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                    The Materials Project. Materials Data on Ca5P8 by Materials Project.  United States.  doi:https://doi.org/10.17188/1202958

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                    The Materials Project. 2020.  
"Materials Data on Ca5P8 by Materials Project".  United States.  doi:https://doi.org/10.17188/1202958.  https://www.osti.gov/servlets/purl/1202958. Pub date:Fri Jul 17 00:00:00 EDT 2020

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@article{osti_1202958,

  title        = {Materials Data on Ca5P8 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ca5P8 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. there are three inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six P+1.25- atoms to form CaP6 octahedra that share corners with four equivalent CaP6 octahedra, corners with two equivalent PP4 tetrahedra, edges with ten CaP6 octahedra, and edges with two equivalent PP4 tetrahedra. The corner-sharing octahedral tilt angles are 8°. There are four shorter (2.89 Å) and two longer (3.13 Å) Ca–P bond lengths. In the second Ca2+ site, Ca2+ is bonded to six P+1.25- atoms to form CaP6 octahedra that share corners with four equivalent CaP6 octahedra, corners with two equivalent PP4 tetrahedra, edges with ten CaP6 octahedra, and edges with two equivalent PP4 tetrahedra. The corner-sharing octahedral tilt angles are 9°. There are a spread of Ca–P bond distances ranging from 2.90–3.04 Å. In the third Ca2+ site, Ca2+ is bonded to six P+1.25- atoms to form CaP6 octahedra that share corners with six CaP6 octahedra, corners with six equivalent PP4 tetrahedra, and edges with nine CaP6 octahedra. The corner-sharing octahedra tilt angles range from 8–9°. There are four shorter (2.95 Å) and two longer (2.97 Å) Ca–P bond lengths. There are three inequivalent P+1.25- sites. In the first P+1.25- site, P+1.25- is bonded to five Ca2+ and one P+1.25- atom to form PCa5P octahedra that share corners with seven PCa5P octahedra, a cornercorner with one PP4 tetrahedra, and edges with ten PCa5P octahedra. The corner-sharing octahedra tilt angles range from 0–94°. The P–P bond length is 2.16 Å. In the second P+1.25- site, P+1.25- is bonded to five Ca2+ and one P+1.25- atom to form PCa5P octahedra that share corners with seven PCa5P octahedra, a cornercorner with one PP4 tetrahedra, and edges with ten PCa5P octahedra. The corner-sharing octahedra tilt angles range from 0–94°. The P–P bond length is 2.18 Å. In the third P+1.25- site, P+1.25- is bonded to four P+1.25- atoms to form distorted PP4 tetrahedra that share corners with three PCa5P octahedra, corners with nine CaP6 octahedra, and edges with three CaP6 octahedra. The corner-sharing octahedra tilt angles range from 21–76°. The P–P bond length is 2.34 Å.},

  doi          = {10.17188/1202958},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Fri Jul 17 00:00:00 EDT 2020},

  month        = {Fri Jul 17 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1202958

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