Materials Data on ErCdCu4 by Materials Project
ErCu4Cd is Hexagonal Laves-derived structured and crystallizes in the cubic F-43m space group. The structure is three-dimensional. Er is bonded in a 12-coordinate geometry to twelve equivalent Cu and four equivalent Cd atoms. All Er–Cu bond lengths are 2.98 Å. All Er–Cd bond lengths are 3.11 Å. Cu is bonded to three equivalent Er, six equivalent Cu, and three equivalent Cd atoms to form a mixture of corner, edge, and face-sharing CuEr3Cd3Cu6 cuboctahedra. There are three shorter (2.53 Å) and three longer (2.55 Å) Cu–Cu bond lengths. All Cu–Cd bond lengths are 2.98 Å. Cd is bonded in a 4-coordinate geometry to four equivalent Er and twelve equivalent Cu atoms.
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