Materials Data on CaGd2O4 by Materials Project

doi:10.17188/1289283

Title: Materials Data on CaGd2O4 by Materials Project

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Abstract

CaGd2O4 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are two shorter (2.30 Å) and four longer (2.65 Å) Ca–O bond lengths. Gd3+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing GdO6 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. There are a spread of Gd–O bond distances ranging from 2.26–2.40 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted square co-planar geometry to four equivalent Gd3+ atoms. In the second O2- site, O2- is bonded to two equivalent Ca2+ and three equivalent Gd3+ atoms to form distorted OCa2Gd3 trigonal bipyramids that share corners with five equivalent OCa2Gd2 tetrahedra, corners with two equivalent OCa2Gd3 trigonal bipyramids, an edgeedge with one OCa2Gd2 tetrahedra, and edges with five equivalent OCa2Gd3 trigonal bipyramids. In the third O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Gd3+ atoms to form OCa2Gd2 tetrahedra that share corners with two equivalent OCa2Gd2 tetrahedra, corners with ten equivalent OCa2Gd3 trigonal bipyramids, and edges with two equivalent OCa2Gd3 trigonal bipyramids.

Authors:: The Materials Project

Publication Date:: Mon Aug 03 00:00:00 EDT 2020

Other Number(s):: mp-754177

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; CaGd2O4; Ca-Gd-O

OSTI Identifier:: 1289283

DOI:: https://doi.org/10.17188/1289283

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                    The Materials Project. Materials Data on CaGd2O4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1289283.

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                    The Materials Project. Materials Data on CaGd2O4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1289283

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                    The Materials Project. 2020.  
"Materials Data on CaGd2O4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1289283.  https://www.osti.gov/servlets/purl/1289283. Pub date:Mon Aug 03 00:00:00 EDT 2020

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@article{osti_1289283,

  title        = {Materials Data on CaGd2O4 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {CaGd2O4 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Ca2+ is bonded in a 6-coordinate geometry to six O2- atoms. There are two shorter (2.30 Å) and four longer (2.65 Å) Ca–O bond lengths. Gd3+ is bonded to six O2- atoms to form a mixture of corner and edge-sharing GdO6 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. There are a spread of Gd–O bond distances ranging from 2.26–2.40 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted square co-planar geometry to four equivalent Gd3+ atoms. In the second O2- site, O2- is bonded to two equivalent Ca2+ and three equivalent Gd3+ atoms to form distorted OCa2Gd3 trigonal bipyramids that share corners with five equivalent OCa2Gd2 tetrahedra, corners with two equivalent OCa2Gd3 trigonal bipyramids, an edgeedge with one OCa2Gd2 tetrahedra, and edges with five equivalent OCa2Gd3 trigonal bipyramids. In the third O2- site, O2- is bonded to two equivalent Ca2+ and two equivalent Gd3+ atoms to form OCa2Gd2 tetrahedra that share corners with two equivalent OCa2Gd2 tetrahedra, corners with ten equivalent OCa2Gd3 trigonal bipyramids, and edges with two equivalent OCa2Gd3 trigonal bipyramids.},

  doi          = {10.17188/1289283},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Mon Aug 03 00:00:00 EDT 2020},

  month        = {Mon Aug 03 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1289283

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