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Title: Materials Data on Mg2Ni2O5 by Materials Project

Abstract

Mg2Ni2O5 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. Mg2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Mg–O bond distances ranging from 2.09–2.72 Å. Ni3+ is bonded to five O2- atoms to form corner-sharing NiO5 square pyramids. There are a spread of Ni–O bond distances ranging from 1.90–1.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Mg2+ and two equivalent Ni3+ atoms to form distorted OMg4Ni2 octahedra that share corners with eight equivalent OMg2Ni2 tetrahedra, edges with two equivalent OMg4Ni2 octahedra, and edges with two equivalent OMg2Ni2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Mg2+ and two equivalent Ni3+ atoms to form OMg2Ni2 tetrahedra that share corners with four equivalent OMg4Ni2 octahedra, corners with four equivalent OMg2Ni2 tetrahedra, and an edgeedge with one OMg4Ni2 octahedra. The corner-sharing octahedra tilt angles range from 19–61°. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Mg2+ and two equivalent Ni3+ atoms.

Authors:
Contributors:
Researcher:
Publication Date:
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)
Contributing Org.:
MIT; UC Berkeley; Duke; U Louvain
OSTI Identifier:
1320779
Report Number(s):
mvc-3952
DOE Contract Number:  
AC02-05CH11231; EDCBEE
Resource Type:
Data
Resource Relation:
Related Information: https://materialsproject.org/citing
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; crystal structure; Mg2Ni2O5; Mg-Ni-O

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on Mg2Ni2O5 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1320779.
Persson, Kristin, & Project, Materials. Materials Data on Mg2Ni2O5 by Materials Project. United States. doi:10.17188/1320779.
Persson, Kristin, and Project, Materials. Sun . "Materials Data on Mg2Ni2O5 by Materials Project". United States. doi:10.17188/1320779. https://www.osti.gov/servlets/purl/1320779.
@article{osti_1320779,
title = {Materials Data on Mg2Ni2O5 by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {Mg2Ni2O5 crystallizes in the orthorhombic Pbam space group. The structure is three-dimensional. Mg2+ is bonded in a 7-coordinate geometry to seven O2- atoms. There are a spread of Mg–O bond distances ranging from 2.09–2.72 Å. Ni3+ is bonded to five O2- atoms to form corner-sharing NiO5 square pyramids. There are a spread of Ni–O bond distances ranging from 1.90–1.99 Å. There are three inequivalent O2- sites. In the first O2- site, O2- is bonded to four equivalent Mg2+ and two equivalent Ni3+ atoms to form distorted OMg4Ni2 octahedra that share corners with eight equivalent OMg2Ni2 tetrahedra, edges with two equivalent OMg4Ni2 octahedra, and edges with two equivalent OMg2Ni2 tetrahedra. In the second O2- site, O2- is bonded to two equivalent Mg2+ and two equivalent Ni3+ atoms to form OMg2Ni2 tetrahedra that share corners with four equivalent OMg4Ni2 octahedra, corners with four equivalent OMg2Ni2 tetrahedra, and an edgeedge with one OMg4Ni2 octahedra. The corner-sharing octahedra tilt angles range from 19–61°. In the third O2- site, O2- is bonded in a 4-coordinate geometry to three equivalent Mg2+ and two equivalent Ni3+ atoms.},
doi = {10.17188/1320779},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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