Materials Data on CaCu2(GeO3)4 by Materials Project

doi:10.17188/1318632

Title: Materials Data on CaCu2(GeO3)4 by Materials Project

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Abstract

CaCu2(GeO3)4 is Esseneite-like structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.42–2.52 Å. There are two inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six GeO4 tetrahedra and edges with two equivalent CuO6 octahedra. There are four shorter (1.97 Å) and two longer (2.18 Å) Cu–O bond lengths. In the second Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six GeO4 tetrahedra and edges with two equivalent CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.02–2.06 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with three CuO6 octahedra and corners with two equivalent GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 43–61°. There are a spread of Ge–O bond distances ranging from 1.74–1.80 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms tomore »« less

Authors:: The Materials Project

Publication Date:: Wed Jul 15 00:00:00 EDT 2020

Other Number(s):: mvc-12739

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; CaCu2(GeO3)4; Ca-Cu-Ge-O

OSTI Identifier:: 1318632

DOI:: https://doi.org/10.17188/1318632

Citation Formats


                    The Materials Project. Materials Data on CaCu2(GeO3)4 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1318632.

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                    The Materials Project. Materials Data on CaCu2(GeO3)4 by Materials Project.  United States.  doi:https://doi.org/10.17188/1318632

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                    The Materials Project. 2020.  
"Materials Data on CaCu2(GeO3)4 by Materials Project".  United States.  doi:https://doi.org/10.17188/1318632.  https://www.osti.gov/servlets/purl/1318632. Pub date:Wed Jul 15 00:00:00 EDT 2020

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@article{osti_1318632,

  title        = {Materials Data on CaCu2(GeO3)4 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {CaCu2(GeO3)4 is Esseneite-like structured and crystallizes in the monoclinic C2 space group. The structure is three-dimensional. Ca2+ is bonded in a 8-coordinate geometry to eight O2- atoms. There are a spread of Ca–O bond distances ranging from 2.42–2.52 Å. There are two inequivalent Cu3+ sites. In the first Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six GeO4 tetrahedra and edges with two equivalent CuO6 octahedra. There are four shorter (1.97 Å) and two longer (2.18 Å) Cu–O bond lengths. In the second Cu3+ site, Cu3+ is bonded to six O2- atoms to form CuO6 octahedra that share corners with six GeO4 tetrahedra and edges with two equivalent CuO6 octahedra. There are a spread of Cu–O bond distances ranging from 2.02–2.06 Å. There are two inequivalent Ge4+ sites. In the first Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with three CuO6 octahedra and corners with two equivalent GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 43–61°. There are a spread of Ge–O bond distances ranging from 1.74–1.80 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with three CuO6 octahedra and corners with two equivalent GeO4 tetrahedra. The corner-sharing octahedra tilt angles range from 43–61°. There are a spread of Ge–O bond distances ranging from 1.77–1.80 Å. There are six inequivalent O2- sites. In the first O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+ and two Ge4+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+ and two Ge4+ atoms. In the third O2- site, O2- is bonded in a 3-coordinate geometry to one Ca2+, one Cu3+, and one Ge4+ atom. In the fourth O2- site, O2- is bonded in a distorted bent 150 degrees geometry to one Cu3+ and one Ge4+ atom. In the fifth O2- site, O2- is bonded to one Ca2+, two Cu3+, and one Ge4+ atom to form a mixture of distorted edge and corner-sharing OCaCu2Ge tetrahedra. In the sixth O2- site, O2- is bonded in a distorted trigonal planar geometry to two Cu3+ and one Ge4+ atom.},

  doi          = {10.17188/1318632},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Wed Jul 15 00:00:00 EDT 2020},

  month        = {Wed Jul 15 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1318632

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