Materials Data on SmAu3 by Materials Project
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.
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