Be3Cu is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a distorted body-centered cubic geometry to four equivalent Be(2) and four equivalent Cu(1) atoms. In the second Be site, Be(2) is bonded in a 14-coordinate geometry to eight equivalent Be(1) and six equivalent Cu(1) atoms. Cu(1) is bonded in a distorted body-centered cubic geometry to six equivalent Be(2) and eight equivalent Be(1) atoms.
Be3Cu is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent Be sites. In the first Be site, Be(1) is bonded in a distorted body-centered cubic geometry to four equivalent Be(2) and four equivalent Cu(1) atoms. All Be(1)-Be(2) bond lengths are 2.25 Å. All Be(1)-Cu(1) bond lengths are 2.25 Å. In the second Be site, Be(2) is bonded in a 14-coordinate geometry to eight equivalent Be(1) and six equivalent Cu(1) atoms. All Be(2)-Cu(1) bond lengths are 2.60 Å. Cu(1) is bonded in a distorted body-centered cubic geometry to six equivalent Be(2) and eight equivalent Be(1) atoms.