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Title: Materials Data on Ho2Ge2O7 by Materials Project

Abstract

Ho2Ge2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ho3+ is bonded to eight O2- atoms to form distorted HoO8 hexagonal bipyramids that share edges with six equivalent HoO8 hexagonal bipyramids and edges with six equivalent GeO6 octahedra. There are two shorter (2.17 Å) and six longer (2.46 Å) Ho–O bond lengths. Ge4+ is bonded to six equivalent O2- atoms to form GeO6 octahedra that share corners with six equivalent GeO6 octahedra and edges with six equivalent HoO8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 48°. All Ge–O bond lengths are 1.94 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Ho3+ atoms to form corner-sharing OHo4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ho3+ and two equivalent Ge4+ atoms.

Authors:
Publication Date:
Other Number(s):
mp-753692
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; Ho2Ge2O7; Ge-Ho-O
OSTI Identifier:
1289101
DOI:
https://doi.org/10.17188/1289101

Citation Formats

The Materials Project. Materials Data on Ho2Ge2O7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1289101.
The Materials Project. Materials Data on Ho2Ge2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1289101
The Materials Project. 2020. "Materials Data on Ho2Ge2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1289101. https://www.osti.gov/servlets/purl/1289101. Pub date:Sat May 02 00:00:00 EDT 2020
@article{osti_1289101,
title = {Materials Data on Ho2Ge2O7 by Materials Project},
author = {The Materials Project},
abstractNote = {Ho2Ge2O7 crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Ho3+ is bonded to eight O2- atoms to form distorted HoO8 hexagonal bipyramids that share edges with six equivalent HoO8 hexagonal bipyramids and edges with six equivalent GeO6 octahedra. There are two shorter (2.17 Å) and six longer (2.46 Å) Ho–O bond lengths. Ge4+ is bonded to six equivalent O2- atoms to form GeO6 octahedra that share corners with six equivalent GeO6 octahedra and edges with six equivalent HoO8 hexagonal bipyramids. The corner-sharing octahedral tilt angles are 48°. All Ge–O bond lengths are 1.94 Å. There are two inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Ho3+ atoms to form corner-sharing OHo4 tetrahedra. In the second O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Ho3+ and two equivalent Ge4+ atoms.},
doi = {10.17188/1289101},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat May 02 00:00:00 EDT 2020},
month = {Sat May 02 00:00:00 EDT 2020}
}