Materials Data on Na2Ge2O5 by Materials Project

doi:10.17188/1301488

Title: Materials Data on Na2Ge2O5 by Materials Project

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Abstract

Na2Ge2O5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with two equivalent NaO6 octahedra, corners with four GeO4 tetrahedra, corners with two equivalent NaO5 trigonal bipyramids, edges with two equivalent NaO6 octahedra, edges with two equivalent GeO4 tetrahedra, and edges with two equivalent NaO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 18°. There are a spread of Na–O bond distances ranging from 2.37–2.73 Å. In the second Na1+ site, Na1+ is bonded to five O2- atoms to form distorted NaO5 trigonal bipyramids that share corners with two equivalent NaO6 octahedra, corners with four GeO4 tetrahedra, corners with two equivalent NaO5 trigonal bipyramids, edges with two equivalent NaO6 octahedra, an edgeedge with one GeO4 tetrahedra, and edges with two equivalent NaO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 24–69°. There are a spread of Na–O bond distances ranging from 2.34–2.76 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 two equivalentmore »« less

Authors:: The Materials Project

Publication Date:: Thu Apr 30 00:00:00 EDT 2020

Other Number(s):: mp-772811

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; Na2Ge2O5; Ge-Na-O

OSTI Identifier:: 1301488

DOI:: https://doi.org/10.17188/1301488

Citation Formats


                    The Materials Project. Materials Data on Na2Ge2O5 by Materials Project.  United States: N. p., 2020. 
        Web.  doi:10.17188/1301488.

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                    The Materials Project. Materials Data on Na2Ge2O5 by Materials Project.  United States.  doi:https://doi.org/10.17188/1301488

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                    The Materials Project. 2020.  
"Materials Data on Na2Ge2O5 by Materials Project".  United States.  doi:https://doi.org/10.17188/1301488.  https://www.osti.gov/servlets/purl/1301488. Pub date:Thu Apr 30 00:00:00 EDT 2020

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@article{osti_1301488,

  title        = {Materials Data on Na2Ge2O5 by Materials Project},

  author       = {The Materials Project},

  abstractNote = {Na2Ge2O5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Na1+ sites. In the first Na1+ site, Na1+ is bonded to six O2- atoms to form distorted NaO6 octahedra that share corners with two equivalent NaO6 octahedra, corners with four GeO4 tetrahedra, corners with two equivalent NaO5 trigonal bipyramids, edges with two equivalent NaO6 octahedra, edges with two equivalent GeO4 tetrahedra, and edges with two equivalent NaO5 trigonal bipyramids. The corner-sharing octahedral tilt angles are 18°. There are a spread of Na–O bond distances ranging from 2.37–2.73 Å. In the second Na1+ site, Na1+ is bonded to five O2- atoms to form distorted NaO5 trigonal bipyramids that share corners with two equivalent NaO6 octahedra, corners with four GeO4 tetrahedra, corners with two equivalent NaO5 trigonal bipyramids, edges with two equivalent NaO6 octahedra, an edgeedge with one GeO4 tetrahedra, and edges with two equivalent NaO5 trigonal bipyramids. The corner-sharing octahedra tilt angles range from 24–69°. There are a spread of Na–O bond distances ranging from 2.34–2.76 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 two equivalent NaO6 octahedra, corners with three GeO4 tetrahedra, corners with three equivalent NaO5 trigonal bipyramids, and an edgeedge with one NaO5 trigonal bipyramid. The corner-sharing octahedra tilt angles range from 39–55°. There are a spread of Ge–O bond distances ranging from 1.73–1.81 Å. In the second Ge4+ site, Ge4+ is bonded to four O2- atoms to form GeO4 tetrahedra that share corners with two equivalent NaO6 octahedra, corners with three GeO4 tetrahedra, a cornercorner with one NaO5 trigonal bipyramid, and edges with two equivalent NaO6 octahedra. The corner-sharing octahedra tilt angles range from 57–68°. There are a spread of Ge–O bond distances ranging from 1.72–1.81 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 5-coordinate geometry to four Na1+ and one Ge4+ atom. In the second O2- site, O2- is bonded in a 5-coordinate geometry to four Na1+ and one Ge4+ atom. In the third O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+ and two equivalent Ge4+ atoms. In the fourth O2- site, O2- is bonded in a distorted trigonal planar geometry to one Na1+ and two equivalent Ge4+ atoms. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to one Na1+ and two Ge4+ atoms.},

  doi          = {10.17188/1301488},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Thu Apr 30 00:00:00 EDT 2020},

  month        = {Thu Apr 30 00:00:00 EDT 2020}

}

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DOI: https://doi.org/10.17188/1301488

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Materials Data on Na2Ge2O5 by Materials Project

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