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All sourcesNASA NTRSDOE OSTI
DOE OSTI2020

Materials Data on Sm2CdCu2 by Materials Project

Sm2Cu2Cd crystallizes in the tetragonal P4/mbm space group. The structure is three-dimensional. Sm is bonded in a 6-coordinate geometry to six equivalent Cu and four equivalent Cd atoms. There are two shorter (2.92 Å) and four longer (2.99 Å) Sm–Cu bond lengths. All Sm–Cd bond lengths are 3.40 Å. Cu is bonded in a 9-coordinate geometry to six equivalent Sm, one Cu, and two equivalent Cd atoms. The Cu–Cu bond length is 2.55 Å. Both Cu–Cd bond lengths are 3.11 Å. Cd is bonded to eight equivalent Sm and four equivalent Cu atoms to form a mixture of corner and face-sharing CdSm8Cu4 cuboctahedra.

36 MATERIALS SCIENCE↗
DOE OSTI2020

Materials Data on SmCdCu by Materials Project

SmCuCd crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Sm is bonded in a 11-coordinate geometry to five Cu and six equivalent Cd atoms. There are four shorter (3.04 Å) and one longer (3.16 Å) Sm–Cu bond lengths. There are two shorter (3.26 Å) and four longer (3.39 Å) Sm–Cd bond lengths. There are two inequivalent Cu sites. In the first Cu site, Cu is bonded in a 9-coordinate geometry to three equivalent Sm and six equivalent Cd atoms. All Cu–Cd bond lengths are 2.75 Å. In the second Cu site, Cu is bonded in a 9-coordinate geometry to six equivalent Sm and three equivalent Cd atoms. All Cu–Cd bond lengths are 2.93 Å. Cd is bonded in a 10-coordinate geometry to six equivalent Sm and four Cu atoms.

36 MATERIALS SCIENCE↗