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Title: Materials Data on SrGd2Sc2O7 by Materials Project

Abstract

SrGd2Sc2O7 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, faces with four equivalent SrO12 cuboctahedra, and faces with eight equivalent ScO6 octahedra. There are four shorter (2.86 Å) and eight longer (3.06 Å) Sr–O bond lengths. Gd3+ is bonded in a 1-coordinate geometry to nine O2- atoms. There are a spread of Gd–O bond distances ranging from 2.15–2.92 Å. Sc3+ is bonded to six O2- atoms to form ScO6 octahedra that share corners with five equivalent ScO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–13°. There are a spread of Sc–O bond distances ranging from 2.04–2.22 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Sc3+ atoms to form a mixture of distorted corner and edge-sharing OSr4Sc2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded in a distorted linear geometry to five equivalent Gd3+ and one Sc3+ atom. In the third O2- site, O2- is bonded in a 4-coordinatemore » geometry to two equivalent Sr2+, two equivalent Gd3+, and two equivalent Sc3+ atoms.« less

Publication Date:
Other Number(s):
mp-1101990
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Product Type:
Dataset
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)
Subject:
36 MATERIALS SCIENCE
Keywords:
crystal structure; SrGd2Sc2O7; Gd-O-Sc-Sr
OSTI Identifier:
1680669
DOI:
https://doi.org/10.17188/1680669

Citation Formats

The Materials Project. Materials Data on SrGd2Sc2O7 by Materials Project. United States: N. p., 2018. Web. doi:10.17188/1680669.
The Materials Project. Materials Data on SrGd2Sc2O7 by Materials Project. United States. doi:https://doi.org/10.17188/1680669
The Materials Project. 2018. "Materials Data on SrGd2Sc2O7 by Materials Project". United States. doi:https://doi.org/10.17188/1680669. https://www.osti.gov/servlets/purl/1680669. Pub date:Wed Jul 18 00:00:00 EDT 2018
@article{osti_1680669,
title = {Materials Data on SrGd2Sc2O7 by Materials Project},
author = {The Materials Project},
abstractNote = {SrGd2Sc2O7 crystallizes in the tetragonal I4/mmm space group. The structure is three-dimensional. Sr2+ is bonded to twelve O2- atoms to form SrO12 cuboctahedra that share corners with four equivalent SrO12 cuboctahedra, faces with four equivalent SrO12 cuboctahedra, and faces with eight equivalent ScO6 octahedra. There are four shorter (2.86 Å) and eight longer (3.06 Å) Sr–O bond lengths. Gd3+ is bonded in a 1-coordinate geometry to nine O2- atoms. There are a spread of Gd–O bond distances ranging from 2.15–2.92 Å. Sc3+ is bonded to six O2- atoms to form ScO6 octahedra that share corners with five equivalent ScO6 octahedra and faces with four equivalent SrO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–13°. There are a spread of Sc–O bond distances ranging from 2.04–2.22 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Sr2+ and two equivalent Sc3+ atoms to form a mixture of distorted corner and edge-sharing OSr4Sc2 octahedra. The corner-sharing octahedral tilt angles are 0°. In the second O2- site, O2- is bonded in a distorted linear geometry to five equivalent Gd3+ and one Sc3+ atom. In the third O2- site, O2- is bonded in a 4-coordinate geometry to two equivalent Sr2+, two equivalent Gd3+, and two equivalent Sc3+ atoms.},
doi = {10.17188/1680669},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2018},
month = {7}
}