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Title: Materials Data on Mg2Co2O5 by Materials Project

Abstract

Mg2Co2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. Mg2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mg–O bond distances ranging from 2.02–2.26 Å. There are two inequivalent Co3+ sites. In the first Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four equivalent CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 35°. There is two shorter (1.92 Å) and four longer (1.95 Å) Co–O bond length. In the second Co3+ site, Co3+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two equivalent CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Co–O bond distances ranging from 1.84–1.98 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent Mg2+ and two equivalent Co3+ atoms. In the second O2- site, O2- is bonded to two equivalent Mg2+ and two Co3+ atoms to form distorted corner-sharing OMg2Co2 tetrahedra. In themore » third O2- site, O2- is bonded to two equivalent Mg2+ and two equivalent Co3+ atoms to form distorted corner-sharing OMg2Co2 tetrahedra.« less

Authors:
Publication Date:
Other Number(s):
mp-1076088
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; Mg2Co2O5; Co-Mg-O
OSTI Identifier:
1475713
DOI:
https://doi.org/10.17188/1475713

Citation Formats

The Materials Project. Materials Data on Mg2Co2O5 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1475713.
The Materials Project. Materials Data on Mg2Co2O5 by Materials Project. United States. doi:https://doi.org/10.17188/1475713
The Materials Project. 2020. "Materials Data on Mg2Co2O5 by Materials Project". United States. doi:https://doi.org/10.17188/1475713. https://www.osti.gov/servlets/purl/1475713. Pub date:Sun May 03 00:00:00 EDT 2020
@article{osti_1475713,
title = {Materials Data on Mg2Co2O5 by Materials Project},
author = {The Materials Project},
abstractNote = {Mg2Co2O5 is Aluminum carbonitride-like structured and crystallizes in the orthorhombic Ima2 space group. The structure is three-dimensional. Mg2+ is bonded in a 5-coordinate geometry to five O2- atoms. There are a spread of Mg–O bond distances ranging from 2.02–2.26 Å. There are two inequivalent Co3+ sites. In the first Co3+ site, Co3+ is bonded to six O2- atoms to form CoO6 octahedra that share corners with four equivalent CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 35°. There is two shorter (1.92 Å) and four longer (1.95 Å) Co–O bond length. In the second Co3+ site, Co3+ is bonded to four O2- atoms to form CoO4 tetrahedra that share corners with two equivalent CoO6 octahedra and corners with two equivalent CoO4 tetrahedra. The corner-sharing octahedral tilt angles are 51°. There are a spread of Co–O bond distances ranging from 1.84–1.98 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded in a distorted see-saw-like geometry to two equivalent Mg2+ and two equivalent Co3+ atoms. In the second O2- site, O2- is bonded to two equivalent Mg2+ and two Co3+ atoms to form distorted corner-sharing OMg2Co2 tetrahedra. In the third O2- site, O2- is bonded to two equivalent Mg2+ and two equivalent Co3+ atoms to form distorted corner-sharing OMg2Co2 tetrahedra.},
doi = {10.17188/1475713},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun May 03 00:00:00 EDT 2020},
month = {Sun May 03 00:00:00 EDT 2020}
}