Materials Data on SmAl2 by Materials Project
Al2Sm is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Sm is bonded in a 12-coordinate geometry to four equivalent Sm and twelve equivalent Al atoms. All Sm–Sm bond lengths are 3.45 Å. All Sm–Al bond lengths are 3.31 Å. Al is bonded to six equivalent Sm and six equivalent Al atoms to form a mixture of edge, corner, and face-sharing AlSm6Al6 cuboctahedra. All Al–Al bond lengths are 2.82 Å.
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