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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on CeAgSn by Materials Project

CeAgSn crystallizes in the hexagonal P6_3mc space group. The structure is three-dimensional. Ce is bonded in a 12-coordinate geometry to six equivalent Ag and six equivalent Sn atoms. There are three shorter (3.19 Å) and three longer (3.58 Å) Ce–Ag bond lengths. There are three shorter (3.28 Å) and three longer (3.47 Å) Ce–Sn bond lengths. Ag is bonded in a 10-coordinate geometry to six equivalent Ce and four equivalent Sn atoms. There are three shorter (2.85 Å) and one longer (3.22 Å) Ag–Sn bond lengths. Sn is bonded in a 10-coordinate geometry to six equivalent Ce and four equivalent Ag atoms.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce3(AgSn)4 by Materials Project

Ce3Ag4Sn4 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Ce sites. In the first Ce site, Ce is bonded to six Sn atoms to form distorted edge-sharing CeSn6 octahedra. There are four shorter (3.28 Å) and two longer (3.36 Å) Ce–Sn bond lengths. In the second Ce site, Ce is bonded in a 12-coordinate geometry to six equivalent Ag and six Sn atoms. There are four shorter (3.34 Å) and two longer (3.45 Å) Ce–Ag bond lengths. There are two shorter (3.38 Å) and four longer (3.43 Å) Ce–Sn bond lengths. Ag is bonded in a 10-coordinate geometry to three equivalent Ce, one Ag, and four Sn atoms. The Ag–Ag bond length is 2.88 Å. There are a spread of Ag–Sn bond distances ranging from 2.76–2.90 Å. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 9-coordinate geometry to three Ce and six equivalent Ag atoms. In the second Sn site, Sn is bonded in a 9-coordinate geometry to six Ce, two equivalent Ag, and one Sn atom. The Sn–Sn bond length is 2.89 Å.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on Ce3(AgSn)4 by Materials Project

Ce3Ag4Sn4 crystallizes in the orthorhombic Immm space group. The structure is three-dimensional. there are two inequivalent Ce sites. In the first Ce site, Ce is bonded in a 2-coordinate geometry to six equivalent Ag and four Sn atoms. There are four shorter (3.44 Å) and two longer (3.71 Å) Ce–Ag bond lengths. There are two shorter (3.08 Å) and two longer (3.27 Å) Ce–Sn bond lengths. In the second Ce site, Ce is bonded to eight equivalent Ag and four Sn atoms to form distorted face-sharing CeAg8Sn4 cuboctahedra. All Ce–Ag bond lengths are 3.45 Å. There are two shorter (2.88 Å) and two longer (3.12 Å) Ce–Sn bond lengths. Ag is bonded in a 9-coordinate geometry to five Ce and four Sn atoms. There are two shorter (2.99 Å) and two longer (3.18 Å) Ag–Sn bond lengths. There are two inequivalent Sn sites. In the first Sn site, Sn is bonded in a 7-coordinate geometry to three Ce and four equivalent Ag atoms. In the second Sn site, Sn is bonded in a 1-coordinate geometry to three Ce, four equivalent Ag, and one Sn atom. The Sn–Sn bond length is 2.71 Å.

36 MATERIALS SCIENCE↗