Mg2Sr crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 13-coordinate geometry to five equivalent Sr(1), three equivalent Mg(1), and five equivalent Mg(2) atoms. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 9-coordinate geometry to three equivalent Sr(1), two equivalent Mg(1), and four equivalent Mg(2) atoms. In the second Mg site, Mg(2) is bonded in a 9-coordinate geometry to five equivalent Sr(1) and four equivalent Mg(1) atoms.
Mg2Sr crystallizes in the monoclinic C2/m space group. Sr(1) is bonded in a 13-coordinate geometry to five equivalent Sr(1), three equivalent Mg(1), and five equivalent Mg(2) atoms. There are a spread of Sr(1)-Sr(1) bond distances ranging from 3.58-4.20 Å. There is one shorter (3.61 Å) and two longer (3.76 Å) Sr(1)-Mg(1) bond lengths. There are a spread of Sr(1)-Mg(2) bond distances ranging from 3.58-3.78 Å. There are two inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 9-coordinate geometry to three equivalent Sr(1), two equivalent Mg(1), and four equivalent Mg(2) atoms. Both Mg(1)-Mg(1) bond lengths are 3.33 Å. There are two shorter (3.19 Å) and two longer (3.21 Å) Mg(1)-Mg(2) bond lengths. In the second Mg site, Mg(2) is bonded in a 9-coordinate geometry to five equivalent Sr(1) and four equivalent Mg(1) atoms.