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Title: Materials Data on Sr(LaSe2)2 by Materials Project

Abstract

Sr(LaSe2)2 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Sr2+ is bonded to eight equivalent Se2- atoms to form distorted SrSe8 hexagonal bipyramids that share corners with eight equivalent LaSe8 hexagonal bipyramids, edges with four equivalent SrSe8 hexagonal bipyramids, and faces with eight equivalent LaSe8 hexagonal bipyramids. There are four shorter (3.12 Å) and four longer (3.30 Å) Sr–Se bond lengths. La3+ is bonded to eight equivalent Se2- atoms to form distorted LaSe8 hexagonal bipyramids that share corners with four equivalent SrSe8 hexagonal bipyramids, corners with four equivalent LaSe8 hexagonal bipyramids, edges with four equivalent LaSe8 hexagonal bipyramids, faces with four equivalent SrSe8 hexagonal bipyramids, and faces with four equivalent LaSe8 hexagonal bipyramids. There are a spread of La–Se bond distances ranging from 3.04–3.28 Å. Se2- is bonded to two equivalent Sr2+ and four equivalent La3+ atoms to form a mixture of distorted corner, edge, and face-sharing SeSr2La4 octahedra. The corner-sharing octahedra tilt angles range from 16–50°.

Authors:
Contributors:
Researcher:
Publication Date:
Other Number(s):
mp-33569
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; Sr(LaSe2)2; La-Se-Sr
OSTI Identifier:
1206609
DOI:
10.17188/1206609

Citation Formats

Persson, Kristin, and Project, Materials. Materials Data on Sr(LaSe2)2 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1206609.
Persson, Kristin, & Project, Materials. Materials Data on Sr(LaSe2)2 by Materials Project. United States. doi:10.17188/1206609.
Persson, Kristin, and Project, Materials. 2020. "Materials Data on Sr(LaSe2)2 by Materials Project". United States. doi:10.17188/1206609. https://www.osti.gov/servlets/purl/1206609. Pub date:Sat May 09 00:00:00 EDT 2020
@article{osti_1206609,
title = {Materials Data on Sr(LaSe2)2 by Materials Project},
author = {Persson, Kristin and Project, Materials},
abstractNote = {Sr(LaSe2)2 crystallizes in the tetragonal I-42d space group. The structure is three-dimensional. Sr2+ is bonded to eight equivalent Se2- atoms to form distorted SrSe8 hexagonal bipyramids that share corners with eight equivalent LaSe8 hexagonal bipyramids, edges with four equivalent SrSe8 hexagonal bipyramids, and faces with eight equivalent LaSe8 hexagonal bipyramids. There are four shorter (3.12 Å) and four longer (3.30 Å) Sr–Se bond lengths. La3+ is bonded to eight equivalent Se2- atoms to form distorted LaSe8 hexagonal bipyramids that share corners with four equivalent SrSe8 hexagonal bipyramids, corners with four equivalent LaSe8 hexagonal bipyramids, edges with four equivalent LaSe8 hexagonal bipyramids, faces with four equivalent SrSe8 hexagonal bipyramids, and faces with four equivalent LaSe8 hexagonal bipyramids. There are a spread of La–Se bond distances ranging from 3.04–3.28 Å. Se2- is bonded to two equivalent Sr2+ and four equivalent La3+ atoms to form a mixture of distorted corner, edge, and face-sharing SeSr2La4 octahedra. The corner-sharing octahedra tilt angles range from 16–50°.},
doi = {10.17188/1206609},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {5}
}

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