Materials Data on SmZn5 by Materials Project
SmZn5 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. Sm is bonded in a 6-coordinate geometry to eighteen Zn atoms. There are six shorter (3.09 Å) and twelve longer (3.42 Å) Sm–Zn bond lengths. There are two inequivalent Zn sites. In the first Zn site, Zn is bonded to four equivalent Sm and eight Zn atoms to form a mixture of edge, corner, and face-sharing ZnSm4Zn8 cuboctahedra. There are four shorter (2.63 Å) and four longer (2.67 Å) Zn–Zn bond lengths. In the second Zn site, Zn is bonded in a 12-coordinate geometry to three equivalent Sm and six equivalent Zn atoms.
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