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Title: Materials Data on Tm2GeO5 by Materials Project

Abstract

Tm2GeO5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Tm3+ sites. In the first Tm3+ site, Tm3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tm–O bond distances ranging from 2.21–2.53 Å. In the second Tm3+ site, Tm3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tm–O bond distances ranging from 2.24–2.40 Å. Ge4+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Ge–O bond distances ranging from 1.73–1.82 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Tm3+ and one Ge4+ atom. In the second O2- site, O2- is bonded to four Tm3+ atoms to form OTm4 tetrahedra that share corners with five OTm4 tetrahedra and edges with three OTm3Ge tetrahedra. In the third O2- site, O2- is bonded to three Tm3+ and one Ge4+ atom to form a mixture of distorted edge and corner-sharing OTm3Ge tetrahedra. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tm3+ and one Ge4+ atom. In themore » fifth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tm3+ and one Ge4+ atom.« less

Authors:
Publication Date:
Other Number(s):
mp-768517
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; Tm2GeO5; Ge-O-Tm
OSTI Identifier:
1298446
DOI:
https://doi.org/10.17188/1298446

Citation Formats

The Materials Project. Materials Data on Tm2GeO5 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1298446.
The Materials Project. Materials Data on Tm2GeO5 by Materials Project. United States. doi:https://doi.org/10.17188/1298446
The Materials Project. 2020. "Materials Data on Tm2GeO5 by Materials Project". United States. doi:https://doi.org/10.17188/1298446. https://www.osti.gov/servlets/purl/1298446. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1298446,
title = {Materials Data on Tm2GeO5 by Materials Project},
author = {The Materials Project},
abstractNote = {Tm2GeO5 crystallizes in the monoclinic P2_1/c space group. The structure is three-dimensional. there are two inequivalent Tm3+ sites. In the first Tm3+ site, Tm3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tm–O bond distances ranging from 2.21–2.53 Å. In the second Tm3+ site, Tm3+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Tm–O bond distances ranging from 2.24–2.40 Å. Ge4+ is bonded in a tetrahedral geometry to four O2- atoms. There are a spread of Ge–O bond distances ranging from 1.73–1.82 Å. There are five inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Tm3+ and one Ge4+ atom. In the second O2- site, O2- is bonded to four Tm3+ atoms to form OTm4 tetrahedra that share corners with five OTm4 tetrahedra and edges with three OTm3Ge tetrahedra. In the third O2- site, O2- is bonded to three Tm3+ and one Ge4+ atom to form a mixture of distorted edge and corner-sharing OTm3Ge tetrahedra. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tm3+ and one Ge4+ atom. In the fifth O2- site, O2- is bonded in a 3-coordinate geometry to two equivalent Tm3+ and one Ge4+ atom.},
doi = {10.17188/1298446},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jul 15 00:00:00 EDT 2020},
month = {Wed Jul 15 00:00:00 EDT 2020}
}