LaMg3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 14-coordinate geometry to eight equivalent Mg(2) and six La(1,1) atoms. In the second Mg site, Mg(2) is bonded in a distorted body-centered cubic geometry to four equivalent Mg(1) and four La(1,1) atoms. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted body-centered cubic geometry to six equivalent Mg(1) and eight equivalent Mg(2) atoms. In the second La site, La(1) is bonded in a distorted body-centered cubic geometry to six equivalent Mg(1) and eight equivalent Mg(2) atoms.
LaMg3 is alpha bismuth trifluoride structured and crystallizes in the tetragonal I4/mmm space group. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 14-coordinate geometry to eight equivalent Mg(2) and six La(1,1) atoms. All Mg(1)-Mg(2) bond lengths are 3.24 Å. There are two shorter (3.64 Å) and four longer (3.80 Å) Mg(1)-La(1,1) bond lengths. In the second Mg site, Mg(2) is bonded in a distorted body-centered cubic geometry to four equivalent Mg(1) and four La(1,1) atoms. All Mg(2)-La(1,1) bond lengths are 3.24 Å. There are two inequivalent La sites. In the first La site, La(1) is bonded in a distorted body-centered cubic geometry to six equivalent Mg(1) and eight equivalent Mg(2) atoms. In the second La site, La(1) is bonded in a distorted body-centered cubic geometry to six equivalent Mg(1) and eight equivalent Mg(2) atoms.