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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LiEu2Ge3 by Materials Project

LiEu2Ge3 crystallizes in the orthorhombic Pnnm space group. The structure is three-dimensional. Li is bonded in a 3-coordinate geometry to one Eu and five Ge atoms. The Li–Eu bond length is 3.38 Å. There are a spread of Li–Ge bond distances ranging from 2.72–2.88 Å. There are two inequivalent Eu sites. In the first Eu site, Eu is bonded in a 5-coordinate geometry to seven Ge atoms. There are a spread of Eu–Ge bond distances ranging from 3.01–3.24 Å. In the second Eu site, Eu is bonded in a 5-coordinate geometry to one Li and nine Ge atoms. There are a spread of Eu–Ge bond distances ranging from 3.21–3.43 Å. There are three inequivalent Ge sites. In the first Ge site, Ge is bonded in a 2-coordinate geometry to two equivalent Li, five Eu, and two Ge atoms. There are one shorter (2.52 Å) and one longer (2.60 Å) Ge–Ge bond lengths. In the second Ge site, Ge is bonded in a 1-coordinate geometry to one Li, six Eu, and two Ge atoms. The Ge–Ge bond length is 2.64 Å. In the third Ge site, Ge is bonded in a 9-coordinate geometry to two equivalent Li, five Eu, and two Ge atoms. The Ge–Ge bond length is 2.48 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Li2EuGe by Materials Project

Li2EuGe is Heusler structured and crystallizes in the cubic Fm-3m space group. The structure is three-dimensional. Li is bonded in a body-centered cubic geometry to four equivalent Eu and four equivalent Ge atoms. All Li–Eu bond lengths are 2.92 Å. All Li–Ge bond lengths are 2.92 Å. Eu is bonded in a distorted body-centered cubic geometry to eight equivalent Li and six equivalent Ge atoms. All Eu–Ge bond lengths are 3.37 Å. Ge is bonded in a body-centered cubic geometry to eight equivalent Li and six equivalent Eu atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiEuGe2 by Materials Project

LiEuGe2 crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Li is bonded in a 5-coordinate geometry to four equivalent Eu and five Ge atoms. There are two shorter (3.55 Å) and two longer (3.57 Å) Li–Eu bond lengths. There are a spread of Li–Ge bond distances ranging from 2.62–2.75 Å. Eu is bonded in a 6-coordinate geometry to four equivalent Li and nine Ge atoms. There are a spread of Eu–Ge bond distances ranging from 3.15–3.42 Å. There are two inequivalent Ge sites. In the first Ge site, Ge is bonded in a 3-coordinate geometry to three equivalent Li, four equivalent Eu, and two equivalent Ge atoms. Both Ge–Ge bond lengths are 2.53 Å. In the second Ge site, Ge is bonded in a 1-coordinate geometry to two equivalent Li, five equivalent Eu, and two equivalent Ge atoms.

36 MATERIALS SCIENCE↗