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DOE OSTI2020

Materials Data on ThCoSn by Materials Project

ThCoSn crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Th is bonded in a 11-coordinate geometry to five Co and six equivalent Sn atoms. There are four shorter (3.01 Å) and one longer (3.04 Å) Th–Co bond lengths. There are two shorter (3.21 Å) and four longer (3.35 Å) Th–Sn bond lengths. There are two inequivalent Co sites. In the first Co site, Co is bonded in a 9-coordinate geometry to six equivalent Th and three equivalent Sn atoms. All Co–Sn bond lengths are 2.82 Å. In the second Co site, Co is bonded in a 9-coordinate geometry to three equivalent Th and six equivalent Sn atoms. All Co–Sn bond lengths are 2.74 Å. Sn is bonded in a 12-coordinate geometry to six equivalent Th and four Co atoms.

36 MATERIALS SCIENCE↗

DOE OSTI2020

Materials Data on Th3Co4Sn13 by Materials Project

Th3Co4Sn13 crystallizes in the cubic Pm-3n space group. The structure is three-dimensional. Th is bonded in a 12-coordinate geometry to four equivalent Co and twelve equivalent Sn atoms. All Th–Co bond lengths are 3.41 Å. There are four shorter (3.36 Å) and eight longer (3.41 Å) Th–Sn bond lengths. Co is bonded in a 6-coordinate geometry to three equivalent Th and six equivalent Sn atoms. All Co–Sn bond lengths are 2.63 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 2-coordinate geometry to three equivalent Th, two equivalent Co, and four Sn atoms. There are a spread of Sn–Sn bond distances ranging from 3.01–3.30 Å. In the second Sn site, Sn is bonded in a cuboctahedral geometry to twelve equivalent Sn atoms.

36 MATERIALS SCIENCE↗