DOE Data Explorer title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Materials Data on Sc3Te4 by Materials Project

Abstract

Sc3Te4 is MAX Phase-derived structured and crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of three Sc3Te4 sheets oriented in the (0, 0, 1) direction. there are three inequivalent Sc+2.67+ sites. In the first Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are three shorter (2.86 Å) and three longer (3.04 Å) Sc–Te bond lengths. In the second Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are three shorter (2.84 Å) and three longer (3.08 Å) Sc–Te bond lengths. In the third Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 2–47°. There are three shorter (2.96 Å) and three longer (2.97 Å) Sc–Te bond lengths. There are four inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a distorted T-shaped geometry to three equivalent Sc+2.67+ atoms. In the second Te2- site, Te2- is bondedmore » to six Sc+2.67+ atoms to form a mixture of edge and corner-sharing TeSc6 octahedra. In the third Te2- site, Te2- is bonded to six Sc+2.67+ atoms to form a mixture of distorted edge and corner-sharing TeSc6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 0°. In the fourth Te2- site, Te2- is bonded in a distorted T-shaped geometry to three equivalent Sc+2.67+ atoms.« less

Authors:
Publication Date:
Other Number(s):
mp-1219373
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; Sc3Te4; Sc-Te
OSTI Identifier:
1672400
DOI:
https://doi.org/10.17188/1672400

Citation Formats

The Materials Project. Materials Data on Sc3Te4 by Materials Project. United States: N. p., 2020. Web. doi:10.17188/1672400.
The Materials Project. Materials Data on Sc3Te4 by Materials Project. United States. doi:https://doi.org/10.17188/1672400
The Materials Project. 2020. "Materials Data on Sc3Te4 by Materials Project". United States. doi:https://doi.org/10.17188/1672400. https://www.osti.gov/servlets/purl/1672400. Pub date:Mon May 04 00:00:00 EDT 2020
@article{osti_1672400,
title = {Materials Data on Sc3Te4 by Materials Project},
author = {The Materials Project},
abstractNote = {Sc3Te4 is MAX Phase-derived structured and crystallizes in the trigonal R3m space group. The structure is two-dimensional and consists of three Sc3Te4 sheets oriented in the (0, 0, 1) direction. there are three inequivalent Sc+2.67+ sites. In the first Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of edge and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 2°. There are three shorter (2.86 Å) and three longer (3.04 Å) Sc–Te bond lengths. In the second Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedral tilt angles are 47°. There are three shorter (2.84 Å) and three longer (3.08 Å) Sc–Te bond lengths. In the third Sc+2.67+ site, Sc+2.67+ is bonded to six Te2- atoms to form a mixture of face, edge, and corner-sharing ScTe6 octahedra. The corner-sharing octahedra tilt angles range from 2–47°. There are three shorter (2.96 Å) and three longer (2.97 Å) Sc–Te bond lengths. There are four inequivalent Te2- sites. In the first Te2- site, Te2- is bonded in a distorted T-shaped geometry to three equivalent Sc+2.67+ atoms. In the second Te2- site, Te2- is bonded to six Sc+2.67+ atoms to form a mixture of edge and corner-sharing TeSc6 octahedra. In the third Te2- site, Te2- is bonded to six Sc+2.67+ atoms to form a mixture of distorted edge and corner-sharing TeSc6 pentagonal pyramids. The corner-sharing octahedral tilt angles are 0°. In the fourth Te2- site, Te2- is bonded in a distorted T-shaped geometry to three equivalent Sc+2.67+ atoms.},
doi = {10.17188/1672400},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 04 00:00:00 EDT 2020},
month = {Mon May 04 00:00:00 EDT 2020}
}