MgTbAg crystallizes in the hexagonal P-62m space group. Mg(1) is bonded in a 4-coordinate geometry to six equivalent Tb(1), two equivalent Ag(1), and two equivalent Ag(2) atoms. Tb(1) is bonded in a 11-coordinate geometry to six equivalent Mg(1), one Ag(2), and four equivalent Ag(1) atoms. There are two inequivalent Ag sites. In the first Ag site, Ag(2) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Tb(1) atoms. In the second Ag site, Ag(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Tb(1) atoms.
MgTbAg crystallizes in the hexagonal P-62m space group. Mg(1) is bonded in a 4-coordinate geometry to six equivalent Tb(1), two equivalent Ag(1), and two equivalent Ag(2) atoms. There are two shorter (3.34 Å) and four longer (3.45 Å) Mg(1)-Tb(1) bond lengths. Both Mg(1)-Ag(1) bond lengths are 2.97 Å. Both Mg(1)-Ag(2) bond lengths are 2.78 Å. Tb(1) is bonded in a 11-coordinate geometry to six equivalent Mg(1), one Ag(2), and four equivalent Ag(1) atoms. The Tb(1)-Ag(2) bond length is 3.19 Å. All Tb(1)-Ag(1) bond lengths are 3.10 Å. There are two inequivalent Ag sites. In the first Ag site, Ag(2) is bonded in a 9-coordinate geometry to six equivalent Mg(1) and three equivalent Tb(1) atoms. In the second Ag site, Ag(1) is bonded in a 9-coordinate geometry to three equivalent Mg(1) and six equivalent Tb(1) atoms.