K3Mg is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a body-centered cubic geometry to eight equivalent K(2) atoms. In the second K site, K(2) is bonded in a distorted body-centered cubic geometry to four equivalent K(1) and four equivalent Mg(1) atoms. Mg(1) is bonded in a body-centered cubic geometry to eight equivalent K(2) atoms.
K3Mg is alpha bismuth trifluoride structured and crystallizes in the cubic Fm-3m space group. There are two inequivalent K sites. In the first K site, K(1) is bonded in a body-centered cubic geometry to eight equivalent K(2) atoms. All K(1)-K(2) bond lengths are 4.13 Å. In the second K site, K(2) is bonded in a distorted body-centered cubic geometry to four equivalent K(1) and four equivalent Mg(1) atoms. All K(2)-Mg(1) bond lengths are 4.13 Å. Mg(1) is bonded in a body-centered cubic geometry to eight equivalent K(2) atoms.