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Materials Data on Y3(CuSi)4 by Materials Project

Dataset ·
DOI:https://doi.org/10.17188/1721134· OSTI ID:1721134
Y3(CuSi)4 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Y3+ sites. In the first Y3+ site, Y3+ is bonded to six Si4- atoms to form edge-sharing YSi6 octahedra. There are four shorter (2.92 Å) and two longer (2.95 Å) Y–Si bond lengths. In the second Y3+ site, Y3+ is bonded in a 6-coordinate geometry to six Si4- atoms. There are two shorter (2.96 Å) and four longer (2.97 Å) Y–Si bond lengths. Cu+1.75+ is bonded in a 4-coordinate geometry to one Cu+1.75+ and four Si4- atoms. The Cu–Cu bond length is 2.48 Å. There are a spread of Cu–Si bond distances ranging from 2.44–2.57 Å. There are two inequivalent Si4- sites. In the first Si4- site, Si4- is bonded in a 9-coordinate geometry to three Y3+ and six equivalent Cu+1.75+ atoms. In the second Si4- site, Si4- is bonded in a 9-coordinate geometry to six Y3+, two equivalent Cu+1.75+, and one Si4- atom. The Si–Si bond length is 2.41 Å.
Research Organization:
LBNL Materials Project; Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Contributing Organization:
The Materials Project; MIT; UC Berkeley; Duke; U Louvain
DOE Contract Number:
AC02-05CH11231
OSTI ID:
1721134
Report Number(s):
mp-1101887
Country of Publication:
United States
Language:
English

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