Mg5Pd2 crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 6-coordinate geometry to six equivalent Pd(2) atoms. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to one Pd(1) and two equivalent Pd(2) atoms. In the third Mg site, Mg(3) is bonded in a 4-coordinate geometry to one Pd(1) and three equivalent Pd(2) atoms. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 9-coordinate geometry to three equivalent Mg(2) and six equivalent Mg(3) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), and six equivalent Mg(3) atoms.
Mg5Pd2 crystallizes in the hexagonal P6_3/mmc space group. There are three inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 6-coordinate geometry to six equivalent Pd(2) atoms. All Mg(1)-Pd(2) bond lengths are 2.74 Å. In the second Mg site, Mg(2) is bonded in a 2-coordinate geometry to one Pd(1) and two equivalent Pd(2) atoms. The Mg(2)-Pd(1) bond length is 3.09 Å. Both Mg(2)-Pd(2) bond lengths are 2.75 Å. In the third Mg site, Mg(3) is bonded in a 4-coordinate geometry to one Pd(1) and three equivalent Pd(2) atoms. The Mg(3)-Pd(1) bond length is 2.59 Å. There is one shorter (2.77 Å) and two longer (2.95 Å) Mg(3)-Pd(2) bond lengths. There are two inequivalent Pd sites. In the first Pd site, Pd(1) is bonded in a 9-coordinate geometry to three equivalent Mg(2) and six equivalent Mg(3) atoms. In the second Pd site, Pd(2) is bonded in a 10-coordinate geometry to two equivalent Mg(1), two equivalent Mg(2), and six equivalent Mg(3) atoms.