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AuSm is Tetraauricupride structured and crystallizes in the cubic Pm-3m space group. The structure is three-dimensional. Sm is bonded in a body-centered cubic geometry to eight equivalent Au atoms. All Sm–Au bond lengths are 3.19 Å. Au is bonded in a body-centered cubic geometry to eight equivalent Sm atoms.
SmAu3 is beta Cu3Ti structured and crystallizes in the orthorhombic Pmmn space group. The structure is three-dimensional. Sm3+ is bonded to twelve Au1- atoms to form a mixture of face, edge, and corner-sharing SmAu12 cuboctahedra. There are a spread of Sm–Au bond distances ranging from 3.06–3.19 Å. There are two inequivalent Au1- sites. In the first Au1- site, Au1- is bonded in a 4-coordinate geometry to four equivalent Sm3+ atoms. In the second Au1- site, Au1- is bonded in a distorted see-saw-like geometry to four equivalent Sm3+ atoms.
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.
AuSm is alpha-derived structured and crystallizes in the orthorhombic Cmcm space group. The structure is three-dimensional. Sm is bonded in a 7-coordinate geometry to seven equivalent Au atoms. There are a spread of Sm–Au bond distances ranging from 3.07–3.19 Å. Au is bonded in a 7-coordinate geometry to seven equivalent Sm atoms.
AuSm is alpha-derived structured and crystallizes in the orthorhombic Pnma space group. The structure is three-dimensional. Sm is bonded in a 7-coordinate geometry to seven equivalent Au atoms. There are a spread of Sm–Au bond distances ranging from 3.05–3.18 Å. Au is bonded in a 7-coordinate geometry to seven equivalent Sm atoms.