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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on BaSn5 by Materials Project

BaSn5 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Ba is bonded in a 2-coordinate geometry to fourteen Sn atoms. There are two shorter (3.59 Å) and twelve longer (3.79 Å) Ba–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 7-coordinate geometry to three equivalent Ba and four equivalent Sn atoms. There are one shorter (2.98 Å) and three longer (3.16 Å) Sn–Sn bond lengths. In the second Sn site, Sn is bonded in a linear geometry to two equivalent Ba atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ba5Sn3 by Materials Project

Ba5Sn3 crystallizes in the tetragonal I4/mcm space group. The structure is three-dimensional. there are two inequivalent Ba sites. In the first Ba site, Ba is bonded to five Sn atoms to form a mixture of distorted face, edge, and corner-sharing BaSn5 trigonal bipyramids. There are a spread of Ba–Sn bond distances ranging from 3.63–3.81 Å. In the second Ba site, Ba is bonded in a square co-planar geometry to four equivalent Sn atoms. All Ba–Sn bond lengths are 3.63 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 8-coordinate geometry to eight equivalent Ba atoms. In the second Sn site, Sn is bonded in a 9-coordinate geometry to eight Ba and one Sn atom. The Sn–Sn bond length is 2.95 Å.

36 MATERIALS SCIENCE↗