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Title: Materials Data on Eu8C4I9N7 by Materials Project

Abstract

Eu8C4N7I9 crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are four inequivalent Eu+2.75+ sites. In the first Eu+2.75+ site, Eu+2.75+ is bonded in a 5-coordinate geometry to three N3- and five I1- atoms. There are one shorter (2.62 Å) and two longer (2.65 Å) Eu–N bond lengths. There are a spread of Eu–I bond distances ranging from 3.30–3.77 Å. In the second Eu+2.75+ site, Eu+2.75+ is bonded in a 7-coordinate geometry to two equivalent N3- and five I1- atoms. Both Eu–N bond lengths are 2.61 Å. There are a spread of Eu–I bond distances ranging from 3.31–3.39 Å. In the third Eu+2.75+ site, Eu+2.75+ is bonded in a 3-coordinate geometry to three equivalent N3- and three equivalent I1- atoms. All Eu–N bond lengths are 2.53 Å. All Eu–I bond lengths are 3.56 Å. In the fourth Eu+2.75+ site, Eu+2.75+ is bonded in a 6-coordinate geometry to three equivalent N3- and three equivalent I1- atoms. All Eu–N bond lengths are 2.62 Å. All Eu–I bond lengths are 3.36 Å. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.19more » Å. In the second C2+ site, C2+ is bonded in a linear geometry to two N3- atoms. Both C–N bond lengths are 1.24 Å. There are three inequivalent N3- sites. In the first N3- site, N3- is bonded to three Eu+2.75+ and one C2+ atom to form a mixture of distorted corner and edge-sharing NEu3C tetrahedra. In the second N3- site, N3- is bonded to three equivalent Eu+2.75+ and one C2+ atom to form distorted edge-sharing NEu3C tetrahedra. In the third N3- site, N3- is bonded to three Eu+2.75+ and one C2+ atom to form a mixture of distorted corner and edge-sharing NEu3C tetrahedra. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a 4-coordinate geometry to four Eu+2.75+ atoms. In the second I1- site, I1- is bonded in a 3-coordinate geometry to five Eu+2.75+ atoms. In the third I1- site, I1- is bonded in a 3-coordinate geometry to three Eu+2.75+ atoms.« less

Publication Date:
Other Number(s):
mp-684011
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; Eu8C4I9N7; C-Eu-I-N
OSTI Identifier:
1283849
DOI:
https://doi.org/10.17188/1283849

Citation Formats

The Materials Project. Materials Data on Eu8C4I9N7 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1283849.
The Materials Project. Materials Data on Eu8C4I9N7 by Materials Project. United States. doi:https://doi.org/10.17188/1283849
The Materials Project. 2020. "Materials Data on Eu8C4I9N7 by Materials Project". United States. doi:https://doi.org/10.17188/1283849. https://www.osti.gov/servlets/purl/1283849. Pub date:Wed Jul 22 00:00:00 EDT 2020
@article{osti_1283849,
title = {Materials Data on Eu8C4I9N7 by Materials Project},
author = {The Materials Project},
abstractNote = {Eu8C4N7I9 crystallizes in the trigonal P3m1 space group. The structure is three-dimensional. there are four inequivalent Eu+2.75+ sites. In the first Eu+2.75+ site, Eu+2.75+ is bonded in a 5-coordinate geometry to three N3- and five I1- atoms. There are one shorter (2.62 Å) and two longer (2.65 Å) Eu–N bond lengths. There are a spread of Eu–I bond distances ranging from 3.30–3.77 Å. In the second Eu+2.75+ site, Eu+2.75+ is bonded in a 7-coordinate geometry to two equivalent N3- and five I1- atoms. Both Eu–N bond lengths are 2.61 Å. There are a spread of Eu–I bond distances ranging from 3.31–3.39 Å. In the third Eu+2.75+ site, Eu+2.75+ is bonded in a 3-coordinate geometry to three equivalent N3- and three equivalent I1- atoms. All Eu–N bond lengths are 2.53 Å. All Eu–I bond lengths are 3.56 Å. In the fourth Eu+2.75+ site, Eu+2.75+ is bonded in a 6-coordinate geometry to three equivalent N3- and three equivalent I1- atoms. All Eu–N bond lengths are 2.62 Å. All Eu–I bond lengths are 3.36 Å. There are two inequivalent C2+ sites. In the first C2+ site, C2+ is bonded in a single-bond geometry to one N3- atom. The C–N bond length is 1.19 Å. In the second C2+ site, C2+ is bonded in a linear geometry to two N3- atoms. Both C–N bond lengths are 1.24 Å. There are three inequivalent N3- sites. In the first N3- site, N3- is bonded to three Eu+2.75+ and one C2+ atom to form a mixture of distorted corner and edge-sharing NEu3C tetrahedra. In the second N3- site, N3- is bonded to three equivalent Eu+2.75+ and one C2+ atom to form distorted edge-sharing NEu3C tetrahedra. In the third N3- site, N3- is bonded to three Eu+2.75+ and one C2+ atom to form a mixture of distorted corner and edge-sharing NEu3C tetrahedra. There are three inequivalent I1- sites. In the first I1- site, I1- is bonded in a 4-coordinate geometry to four Eu+2.75+ atoms. In the second I1- site, I1- is bonded in a 3-coordinate geometry to five Eu+2.75+ atoms. In the third I1- site, I1- is bonded in a 3-coordinate geometry to three Eu+2.75+ atoms.},
doi = {10.17188/1283849},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}