Mg2Sr crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), and four equivalent Mg(3) atoms. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent Mg(3), two equivalent Mg(4), and four equivalent Mg(2) atoms. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 8-coordinate geometry to two equivalent Sr(1), two equivalent Mg(2), and four equivalent Mg(4) atoms. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to four equivalent Sr(2), two equivalent Mg(1), and two equivalent Mg(4) atoms. In the third Mg site, Mg(3) is bonded in a 6-coordinate geometry to two equivalent Sr(2) and four equivalent Sr(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), two equivalent Mg(2), and four equivalent Mg(1) atoms.
Mg2Sr crystallizes in the orthorhombic Amm2 space group. There are two inequivalent Sr sites. In the first Sr site, Sr(1) is bonded in a 8-coordinate geometry to two equivalent Mg(1), two equivalent Mg(4), and four equivalent Mg(3) atoms. Both Sr(1)-Mg(1) bond lengths are 3.58 Å. Both Sr(1)-Mg(4) bond lengths are 3.56 Å. All Sr(1)-Mg(3) bond lengths are 3.59 Å. In the second Sr site, Sr(2) is bonded in a 8-coordinate geometry to two equivalent Mg(3), two equivalent Mg(4), and four equivalent Mg(2) atoms. Both Sr(2)-Mg(3) bond lengths are 3.62 Å. Both Sr(2)-Mg(4) bond lengths are 3.48 Å. All Sr(2)-Mg(2) bond lengths are 3.52 Å. There are four inequivalent Mg sites. In the first Mg site, Mg(1) is bonded in a 8-coordinate geometry to two equivalent Sr(1), two equivalent Mg(2), and four equivalent Mg(4) atoms. Both Mg(1)-Mg(2) bond lengths are 3.16 Å. All Mg(1)-Mg(4) bond lengths are 3.42 Å. In the second Mg site, Mg(2) is bonded in a 8-coordinate geometry to four equivalent Sr(2), two equivalent Mg(1), and two equivalent Mg(4) atoms. Both Mg(2)-Mg(4) bond lengths are 3.29 Å. In the third Mg site, Mg(3) is bonded in a 6-coordinate geometry to two equivalent Sr(2) and four equivalent Sr(1) atoms. In the fourth Mg site, Mg(4) is bonded in a 10-coordinate geometry to two equivalent Sr(1), two equivalent Sr(2), two equivalent Mg(2), and four equivalent Mg(1) atoms.