Materials Data on Al3Cu2 by Materials Project
Cu2Al3 crystallizes in the trigonal P-3m1 space group. The structure is three-dimensional. Cu is bonded in a body-centered cubic geometry to eight Al atoms. There are a spread of Cu–Al bond distances ranging from 2.46–2.58 Å. There are two inequivalent Al sites. In the first Al site, Al is bonded in a 6-coordinate geometry to six equivalent Cu atoms. In the second Al site, Al is bonded in a 5-coordinate geometry to five equivalent Cu atoms.
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