Materials Data on SmMg2 by Materials Project
SmMg2 is Cubic Laves structured and crystallizes in the cubic Fd-3m space group. The structure is three-dimensional. Mg is bonded to six equivalent Mg and six equivalent Sm atoms to form a mixture of face, edge, and corner-sharing MgSm6Mg6 cuboctahedra. All Mg–Mg bond lengths are 3.05 Å. All Mg–Sm bond lengths are 3.58 Å. Sm is bonded in a 12-coordinate geometry to twelve equivalent Mg and four equivalent Sm atoms. All Sm–Sm bond lengths are 3.73 Å.
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