Materials Data on Ca2B2O5 by Materials Project

doi:10.17188/1350811

Title: Materials Data on Ca2B2O5 by Materials Project

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Abstract

Ca2B2O5 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CaO6 octahedra. The corner-sharing octahedra tilt angles range from 63–74°. There are a spread of Ca–O bond distances ranging from 2.35–2.44 Å. In the second Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.32–2.65 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.44 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.42 Å) B–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Ca2+more »« less

Authors:: The Materials Project

Publication Date:: Mon Jul 20 00:00:00 EDT 2020

Other Number(s):: mp-1019560

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; Ca2B2O5; B-Ca-O

OSTI Identifier:: 1350811

DOI:: https://doi.org/10.17188/1350811

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                    The Materials Project. Materials Data on Ca2B2O5 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1350811.

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                    The Materials Project. Materials Data on Ca2B2O5 by Materials Project.  United States.  doi:https://doi.org/10.17188/1350811

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                    The Materials Project. 2020.  
"Materials Data on Ca2B2O5 by Materials Project".  United States.  doi:https://doi.org/10.17188/1350811.  https://www.osti.gov/servlets/purl/1350811. Pub date:Mon Jul 20 00:00:00 EDT 2020

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@article{osti_1350811,

  title        = {Materials Data on Ca2B2O5 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Ca2B2O5 crystallizes in the orthorhombic P2_12_12_1 space group. The structure is three-dimensional. there are two inequivalent Ca2+ sites. In the first Ca2+ site, Ca2+ is bonded to six O2- atoms to form a mixture of edge and corner-sharing CaO6 octahedra. The corner-sharing octahedra tilt angles range from 63–74°. There are a spread of Ca–O bond distances ranging from 2.35–2.44 Å. In the second Ca2+ site, Ca2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Ca–O bond distances ranging from 2.32–2.65 Å. There are two inequivalent B3+ sites. In the first B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.44 Å) B–O bond length. In the second B3+ site, B3+ is bonded in a trigonal planar geometry to three O2- atoms. There is two shorter (1.37 Å) and one longer (1.42 Å) B–O bond length. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded to three equivalent Ca2+ and one B3+ atom to form distorted corner-sharing OCa3B tetrahedra. In the second O2- site, O2- is bonded in a 1-coordinate geometry to three equivalent Ca2+ and one B3+ atom. In the third O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom. In the fourth O2- site, O2- is bonded in a 1-coordinate geometry to three Ca2+ and one B3+ atom. In the fifth O2- site, O2- is bonded in a 2-coordinate geometry to one Ca2+ and two B3+ atoms.},

  doi          = {10.17188/1350811},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Jul 20 00:00:00 EDT 2020},

  month        = {Mon Jul 20 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1350811

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