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Title: Materials Data on LaMn7O12 by Materials Project

Abstract

LaMn7O12 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share faces with eight MnO6 octahedra. There are a spread of La–O bond distances ranging from 2.66–2.74 Å. There are five inequivalent Mn3+ sites. In the first Mn3+ site, Mn3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Mn–O bond lengths are 1.97 Å. In the second Mn3+ site, Mn3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Mn–O bond lengths are 1.97 Å. In the third Mn3+ site, Mn3+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.97 Å) and two longer (1.98 Å) Mn–O bond length. In the fourth Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 42–43°. There are a spread of Mn–O bond distances ranging from 1.97–2.08 Å. In the fifth Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with sixmore » MnO6 octahedra and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 41–42°. There are a spread of Mn–O bond distances ranging from 1.99–2.10 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one La3+ and three Mn3+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one La3+ and three Mn3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to one La3+ and three Mn3+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one La3+ and three Mn3+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1189182
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; LaMn7O12; La-Mn-O
OSTI Identifier:
1655293
DOI:
https://doi.org/10.17188/1655293

Citation Formats

The Materials Project. Materials Data on LaMn7O12 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1655293.
The Materials Project. Materials Data on LaMn7O12 by Materials Project. United States. doi:https://doi.org/10.17188/1655293
The Materials Project. 2020. "Materials Data on LaMn7O12 by Materials Project". United States. doi:https://doi.org/10.17188/1655293. https://www.osti.gov/servlets/purl/1655293. Pub date:Wed Jul 15 00:00:00 EDT 2020
@article{osti_1655293,
title = {Materials Data on LaMn7O12 by Materials Project},
author = {The Materials Project},
abstractNote = {LaMn7O12 crystallizes in the monoclinic C2/m space group. The structure is three-dimensional. La3+ is bonded to twelve O2- atoms to form LaO12 cuboctahedra that share faces with eight MnO6 octahedra. There are a spread of La–O bond distances ranging from 2.66–2.74 Å. There are five inequivalent Mn3+ sites. In the first Mn3+ site, Mn3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Mn–O bond lengths are 1.97 Å. In the second Mn3+ site, Mn3+ is bonded in a square co-planar geometry to four equivalent O2- atoms. All Mn–O bond lengths are 1.97 Å. In the third Mn3+ site, Mn3+ is bonded in a square co-planar geometry to four O2- atoms. There is two shorter (1.97 Å) and two longer (1.98 Å) Mn–O bond length. In the fourth Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 42–43°. There are a spread of Mn–O bond distances ranging from 1.97–2.08 Å. In the fifth Mn3+ site, Mn3+ is bonded to six O2- atoms to form MnO6 octahedra that share corners with six MnO6 octahedra and faces with two equivalent LaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 41–42°. There are a spread of Mn–O bond distances ranging from 1.99–2.10 Å. There are four inequivalent O2- sites. In the first O2- site, O2- is bonded in a 4-coordinate geometry to one La3+ and three Mn3+ atoms. In the second O2- site, O2- is bonded in a 3-coordinate geometry to one La3+ and three Mn3+ atoms. In the third O2- site, O2- is bonded in a 4-coordinate geometry to one La3+ and three Mn3+ atoms. In the fourth O2- site, O2- is bonded in a 3-coordinate geometry to one La3+ and three Mn3+ atoms.},
doi = {10.17188/1655293},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}