Materials Data on Sm3Au by Materials Project
Sm3Au crystallizes in the hexagonal P6_3/mmc space group. The structure is three-dimensional. Sm is bonded in a distorted see-saw-like geometry to four equivalent Au atoms. There are two shorter (3.24 Å) and two longer (3.52 Å) Sm–Au bond lengths. Au is bonded to twelve equivalent Sm atoms to form a mixture of face and corner-sharing AuSm12 cuboctahedra.
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