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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on LiPrSn by Materials Project

LiPrSn is half-Heusler structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Li is bonded in a body-centered cubic geometry to four equivalent Pr and four equivalent Sn atoms. All Li–Pr bond lengths are 2.94 Å. All Li–Sn bond lengths are 2.94 Å. Pr is bonded in a 10-coordinate geometry to four equivalent Li and six equivalent Sn atoms. All Pr–Sn bond lengths are 3.39 Å. Sn is bonded to four equivalent Li and six equivalent Pr atoms to form a mixture of distorted corner and face-sharing SnLi4Pr6 tetrahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on LiPrSn2 by Materials Project

LiPrSn2 crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Li is bonded in a 5-coordinate geometry to four equivalent Pr and five Sn atoms. All Li–Pr bond lengths are 3.47 Å. There are a spread of Li–Sn bond distances ranging from 2.53–2.71 Å. Pr is bonded in a 4-coordinate geometry to four equivalent Li and ten Sn atoms. There are a spread of Pr–Sn bond distances ranging from 3.43–3.65 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a distorted single-bond geometry to one Li and six equivalent Pr atoms. In the second Sn site, Sn is bonded to four equivalent Li and four equivalent Pr atoms to form a mixture of distorted edge and face-sharing SnLi4Pr4 tetrahedra.

36 MATERIALS SCIENCE↗