Materials Data on LaCu5 by Materials Project
LaCu5 crystallizes in the hexagonal P6/mmm space group. The structure is three-dimensional. La is bonded in a 6-coordinate geometry to eighteen Cu atoms. There are six shorter (2.98 Å) and twelve longer (3.31 Å) La–Cu bond lengths. There are two inequivalent Cu sites. In the first Cu site, Cu is bonded to four equivalent La and eight Cu atoms to form a mixture of corner, edge, and face-sharing CuLa4Cu8 cuboctahedra. There are four shorter (2.55 Å) and four longer (2.58 Å) Cu–Cu bond lengths. In the second Cu site, Cu is bonded in a 12-coordinate geometry to three equivalent La and six equivalent Cu atoms.
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