Materials Data on CeMgCu by Materials Project
MgCeCu crystallizes in the hexagonal P-62m space group. The structure is three-dimensional. Mg is bonded in a 4-coordinate geometry to six equivalent Ce and four Cu atoms. There are two shorter (3.35 Å) and four longer (3.50 Å) Mg–Ce bond lengths. There are two shorter (2.77 Å) and two longer (2.99 Å) Mg–Cu bond lengths. Ce is bonded in a 5-coordinate geometry to six equivalent Mg and five Cu atoms. There are four shorter (3.10 Å) and one longer (3.23 Å) Ce–Cu bond lengths. There are two inequivalent Cu sites. In the first Cu site, Cu is bonded in a 9-coordinate geometry to six equivalent Mg and three equivalent Ce atoms. In the second Cu site, Cu is bonded in a 9-coordinate geometry to three equivalent Mg and six equivalent Ce atoms.
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